Explore Scientific ED 127 CF – FCD01 compared to FCD-100
A product test: two models in direct comparison. Von J.S. Schlimmer
1. Introduction
Figure 1: Explore Scientific ED 127 CF models under test
Since April 2016 I own the apochromatic one Refractor ED 127 CF, Model FCD01 by Explore Scientific and I use it for moon and planetary observation as well as for the photography of extended nebulas, open star clusters and galaxy clusters. In addition to the very good look, the possibility for photographic use with the help of a focal reducer, also the low weight of the telescope has influenced my purchase decision. Therefore, I could continue to use my old mount and invest the existing budget in optical accessories. The telescope is still transportable and thus suitable for mobile use outside the light-polluted cities.
Explore Scientific is listed as a Bresser brand. The technical support I approached initially for some questions was very friendly, accommodating and very helpful.
2. Description
The ED 127 CF has a three-lens lens. Between the lenses there is an air gap. The tube is made of carbon fiber and processed to high quality. The ED 127 CF has a three-lens objective. There is an air gap between the lenses. The tube is made of carbon fiber and processed to high quality. Thanks to its low weight of only 7 kg, it can still be carried by a GP-DX or comparable mount.
Since November 2016, the improved FCD-100 model is on the market, which is advertised with high color purity and a perfect optical design. What’s the difference between these two models? To test this, Bresser has kindly provided me with an ED 127 FCD-100.
At first glance, both models resemble each other like twins, as my older model also has the 2.5-inch Hexafoc extract. In addition to the stable construction, it can also be rotated as a whole. In astrophotography this offers the advantage of preserving the focal position, even if the camera needs to be realigned for another object. The 1:10 reduction allows an exact focus. A scale applied on the pullout facilitates the presetting (Figure 2). In the case of visual observation the zenith mirror can of course be adjusted independently of the focuser.
Figure 2: Camera, 0.7x Focal Reducer and Hexafoc Extract
Both models have an aperture of 127 mm and a focal length of 952 mm. In lens labeling, the new model differs only in the additionally printed model designation. Only by closer inspection you can see that the tube of the new model FCD-100 is 15mm shorter. This is a great advantage, because my intrafocal area is very short on my own model. Therefore, in my model, orthoscopic eyepieces (e.g. measuring eyepieces) cannot be used if the extension is provided with an extension sleeve. With my wide-angle eyepieces the extension sleeve always comes to commitment.
3. Objective lenses
For observation I prefer to use wide-angle eyepieces. For almost 2 years my Nagler range has also been supplemented by eyepieces in the 82° series by Explore Scientific. For the telescope comparison the Explore Scientific 2-inch eyepiece with 24 mm focal length, as well as two Explore Scientific 1 ¼ inch eyepieces, with 8.8 and 4.7 mm focal length were used.
4. Explore Scientific 0.7 focal reducer and corrector
of 64 mm (2.5 inches). To connect to Canon cameras, a special T2 adapter must be used. The adapter ring is only 1 mm thick and therefore made of steel. He has a free opening of 36.7 mm.
5. Visual tests
Figure 3: Explore Scientific 82 ° Series Eyepieces
In particular, moon and planets are suitable as test objects for the visual comparison, while in the deep sky range the Orion comes into question with its richness of detail. Open star clusters, on the other hand, offer a very good opportunity to assess the edge imaging at low magnifications.
For the tests, the objects should be as high as possible in the sky, where the influence of astronomical seeing is significantly lower. Because the planets only reached a height of 23° at the meridian passage at the time of the tests, they were out of the question for the tests. For better temperature adaptation, the telescopes were brought to the open air 1-2 hours before the tests.
At dusk on the 23rd of February
In 2018, Aldebaran was covered by the moon. The picture above shows the moon a few seconds before covering on the bright Sky. The small image inside shows the entire image field during the covering. The picture below shows the moon for one hour at the end of the Aldebaran covering. ES 127 FCD-100 and Focal Reducer, Canon 1100D
a) The moon
With the 2-inch 24 mm eyepieces, the moon fits comfortably in the field of vision. While the FCD01 showed a light, yellow color fringe around the bright edge of the crescent, the image of the successor model FCD-100 was without any color aberrations. The higher the magnification the more details revealed on the lunar surface. The sight became really fascinating at 200x magnification with the 4.7 mm eyepiece.
In the Apennine Mountains were already single, larger rock formations to recognize. In the south, on the edge of the Mare Nubium, the Long Wall was just visible, an approximately 100 km long embankment. The crater Thebit could be easily observed on one side of the long wall and Birt and the side crater Birt A on the other side. On closer inspection you could see further small craters such as e.g. Thebit D at the end of the long wall. Also Rima Birt, a groove that runs almost parallel to the Long Wall, but only as half long, was easy to see.
Below are some pictures of the Aldebaran covering from 23rd February 2018. The
beginning was still in the clear sky, so that Aldebaran was difficult to locate.
At the exit one hour later the sky was already dark.
b) Open star cluster: Pleiades and NGC 1647
For the observation of the Pleiades also the 2-inch 24 mm eyepieces was used. With this eyepiece, the Pleiades are a breathtaking sight, because they fit completely into the field of view. In both telescopes, the stars were as fine as needle points and point-shaped to the edge. Visually, no color errors were noticeable. It was such a perfect sight.
NGC 1647 is a very loose open star cluster nearby 97 Tau. Because it is very extensive, it is best seen at low magnification. Approximately 20 stars with a brightness of 8 mag can be captured well with the 2-inch 24-mm eyepiece. Again, the sight is fantastic, as the entire field of view is sharply displayed.
c) Stars and binary stars
AFigure 5: Intrafocal and extrafocal diffraction disks
What about the comparison at high magnifications? Inadequate color correction of refractors is shown by blue color fringes around bright stars. To test this, the choice fell on Bellatrix, the "warrior" in Orion. This star is 1.6 mag bright, bluish giant star of the spectral class B2. At moderate magnification with the 8.8 mm eyepiece (108x), neither the CD01 nor the successor FCD-100 showed any fringing. At high magnification with the 4.7 mm eyepiece (203x), diffraction rings around Bellatrix were clearly visible, but no fringing. However, at this magnification already the atmospheric dispersion was noticeable, as Bellatrix only reaches a height of 46 ° in the meridional passage. The atmospheric dispersion is shown by blue color in the upper area and red color in the lower area of the star. However, it is an atmospheric effect and not due to the telescope optics.
In the constellation Orion there are also numerous binary stars, which can be used to test the resolution. For example, 32 Ori (STF 728) could not be resolved at a distance of about 1.2 arcseconds. For 52 Ori (STF 795), which has a spacing of only 1.0 arcseconds, both components could be detected but not completely separated. The reason for this is in different contrast: the components of 32 Ori have a brightness difference of 1.3 magnitudes, while the components of 52 Ori are equally bright. The observation of Alnitak (STF 774), the eastern belt star of Orion was also interesting. With a distance of at least 4.7 arc seconds, this double star should be easy to separate, despite its brightness difference of 1.8 magnitudes. At 203x magnification Alnitak was also clearly to separate, however the B-component could only be seen at second glance in the diffraction rings. With the 8.8 mm eyepiece Alnitak was inseparable.
Of course, with this type of observation, astronomical seeing plays a crucial
role. Unfortunately, lunar observation was only possible with good astronomical
seeing. At all other tests the astronomical seeing was not very good. In
conclusion, the difference between the two models FCD01 and FCD-100 is hardly
noticeable in visual observations.
6. Photographic tests
a) Diffraction slices in the primary focus
To get a better overview of the color difference between the two models, the defocused diffraction discs were first used recorded in the primary focus at 952 mm focal length (Figure 5). For this a QHY 5L II-C color CMOS camera was used. The images were taken at a distance of -2.2, -1.1, 0, +1.1 and + 2.2 mm from the focus. The light source was Bellatrix.
Overall, my model FCD01 showed slightly more color differences between the intra- and extra-focal diffraction slices. In the intrafocal area it appears slightly greenish, while in the extrafocal area it shines reddish. The successor model FCD-100 shows no color differences between the intra- and extra-focal diffraction disks.
Figure 6: Orion Nebula 16 x 30 seconds, 800 ASA, ED127 CF FCD-100, 0.7 x Focal Reducer
a) Astrophotography with the Explore Scientific 0.7x focal reducer
Figure 7: Bellatrix and Betelgeuse, 5x30 seconds, 800 ASA
Figure 8: Complete picture of Betelgeuse, the inlays show the Star illustrations in the corners on the lower left and upper right
The photos in this review were taken with a modified Canon EOS 1100D. It can also be used for the absorption of hydrogen regions due to the lack of red filter. For the recordings, the camera was connected directly to a laptop via a USB cable and operated exclusively via the Canon "long-distance shot" menu. The focus was set on the live image in 10x zoom mode. Exposure time and sensitivity were also controlled via the laptop. The pictures could be viewed directly after the picture was taken on the screen. The pictures were taken with an exposure time of 30 seconds at 800 ASA. To reduce noise, flat and dark images were also created.
With my FCD01 model, the sharpness can be easily adjusted by the color of the diffraction disk. As soon as the color becomes minimal, or changes from a slight green cast to reddish, the perfect focus is found. This method always worked well and led to quick results. In which Successor model FCD-100, this method could not be applied due to the color purity. Therefore it took some practice to find the right focus. A self-made focusing aid has proven to be helpful. The focusing aid consisted of a ring that was placed on the dew cap. Attached to the ring was a thin ridge that ran through the center, creating a one-dimensional diffraction pattern in the image. Based on the diffraction image was the adjustment of sharpness.
The focusing aid was removed again for photography and bright stars in Orion were once again chosen as test objects. Figure 7 shows Bellatrix (spectral type B2) and Betelgeuse (spectral type M2) taken with the FCD01 and the FCD-100. Exposing time was 5 × 30 seconds and corresponding flat pictures were taken. The different colors are shown very nice in both models. Due to the red sensitivity of the camera, a correspondingly large halo appears around Betelgeuse.
Für For deep sky shots of extended objects not only the color but also the marginal image is of interest. Figure 8 therefore shows the complete picture of Betelgeuse taken with the FCD-100. The inlays show the star pictures in two opposite corners. The 0.7x Focal Reducer levels the image over the entire APS-C format of the camera. Very red stars in the border area are no longer 100% displayed due to dispersion phenomena. The strength of this effect depends on the spectral type of the star and of course on the red sensitivity of the camera and can be observed only at full image resolution (here 4273 pixels x 2848 pixels).
On the basis of the flat images, the vignetting of the two telescopes could also be determined very easily. The vignetting is shown by the edge darkening of the image field. In both models, the brightness drops to around 77% of the center brightness in the outermost corners. This corresponds to about half an aperture.
Figure 6 shows another shot of the Orion Nebula taken with the FCD-100. At the time of shooting, the sky was already lit by the half moon. The colors of the stars are rendered beautifully. There was no color correction during the image process, only the tonal values have been changed. In the predecessor model FCD01, the stars appear on deep sky shots usually with a slight green tint, which is easy to correct in subsequent image editing.
7. Conclusion
In all tests, the FCD-100 has shown no color errors, while the previous model FCD01 still has low color errors. With the improved look of the FCD-100, Explore Scientific / Bresser has reached the limits of color purity in imaging. Bei der Fotografie ist es beim FCD-100 schwieriger den exakten Fokus zu finden wie beim Vorgängermodell FCD01. Eine Fokussierhilfe und etwas Übung verhelfen aber auch hier zum gewünschten Ergebnis.
In photography, the FCD-100 is harder to find the exact focus like the previous model FCD01. A focus aid and a little bit of practice help to achieve the desired result.
The border image on both models is in conjunction with the Explore Scientific 0.7 x Focal Reducer APS-C format punctiform.
The image field illumination is very uniform and shows only slight vignetting.
The 2.5-inch Hexafoc extract is built mechanically very stable and can be rotated as a whole. This allows a camera to be arbitrarily aligned with the focus position almost preserved.
Due to the 15 mm shorter tube on the FCD-100 compared to the FCD01, the intrafocal area of the hexafoc is significantly larger. This also means that orthoscopic Eyepieces (for example, measuring eyepieces) can be used without removing the extension sleeve.
Overall, the Explore Scientific 127 FCD-100 is a fantastic 5-inch telescope that
impresses visually and photographically. In addition, it is transportable with a
weight of just under 7 kg and is also carried by a GP-DX or comparable mount.
Product information "EXPLORE SCIENTIFIC ED APO 127mm f/7.5 FCD-1 Alu 2'' R&P Focuser"
The three-lens design of the EXPLORE SCIENTIFIC ED-Apochromats provides everything an amateur astronomer desires - at a reasonable price. The construction with Hoya FCD001 ED glass has two air spaces and provides a level of correction so superior to the two-lens constructions, that are common in this price class, that you will see the difference immediately.
This excellent optical performance teams up with a high precision mechanics - the result is a telescope on a level that is setting a new standard in it´s price class. Astrophotographers will love this telescope - a optional field flattener is available and makes the telescope perfect even for cameras with a large chip format.
These very popular EXPLORE SCIENTIFIC Triplet ED APO Refractors we do offer in 3 different product lines:
Essential Line: HOYA FCD-1 Glass lens, AL-Tube, 2.0'' Rack & Pinion Focuser with 1:10, 2.0'' Star Diagonal 99% Reflectivity (see Part No. 0112084(AL), 0112106(AL), 0112132(AL)), 0112155(CF + 3''FT)).
Professional Line: HOYA FCD-100 Glass lens, AL/CF-Tube, 2.5'' HEXAFOC Focuser with 1:10, 2.0'' Star Diagonal 99% Reflectivity (see Part No. 0112086(AL), 0112108(AL), 0112109(CF), 0112134(AL), 0112135(CF)).
High-End Line: OHARA FPL-53 Glass lens, Carbon (CF) Tube, 3.0'' Feather-Touch Focuser with 1:10, 2.0'' Star Diagonal 99% Reflectivity (see Part No. 0112165(CF)).
IMPORTANT NOTE: this telescope is supplied without finder or flight case. Compatible finders include the 0620150 EXPLORE SCIENTIFIC ES 8x50 Illuminated Finder Scope, the 0620160 EXPLORE SCIENTIFIC 8x50 90° PolarFinder+Amici-Prism Finder Scope and the 0620170 and 0620180 Explore Scientific 50mm and 60mm Finder-Guidescopes. The 0690420 EXPLORE SCIENTIFIC Flight-Case ED127 ALU Tube and 0690460 EXPLORE SCIENTIFIC Telescope Case ED-APO & AR 127s/152s are both recommended for storage and transportation.
SPECIFICATIONS:
Aperture: 127mm
Focal Length: 952mm
Focal Ratio: f/7.5
Weight: 7.7kg
Backfocus: 165mm beyond 2'' adaptor
WHAT'S INCLUDED
Optics with dovetail plate and finder slot
2'' Star Diagonal 99% reflectivity
Dust caps for front-lens and focuser
Colour:
white
Dust protection caps:
Dust protection caps for front lens and eyepiece holder
Field of application [Telescopes]:
Deep Sky Observation, Deep Sky Photography, Lunar observation, Lunar photography, Planetary observation, Planetary photography
These eyepieces with their huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods. These ultra-wide angle eyepieces played a critical role in the military for aiming at targets, and their long eye-relief counterparts helped reduce eye injury from recoil.Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus. This also maximizes the life of the internal coatings.To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes. All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
These eyepieces with their huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods. These ultra-wide angle eyepieces played a critical role in the military for aiming at targets, and their long eye-relief counterparts helped reduce eye injury from recoil.Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus. This also maximizes the life of the internal coatings.To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
These eyepieces with their huge apparent field of view not only gave the
observer a panoramic visual experience, but they relax the eye so the
observer could pay attention to subtle details for extended periods.
These ultra-wide angle eyepieces played a critical role in the military
for aiming at targets, and their long eye-relief counterparts helped
reduce eye injury from recoil.Each 100° Series Argon-Purged
Waterproof eyepiece is internally sealed and purged with inert, dry
argon gas to prevent internal fogging, to halt the intrusion of fine
particulates and fungus. This also maximizes the life of the internal
coatings.To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
These eyepieces with their huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods. These ultra-wide angle eyepieces played a critical role in the military for aiming at targets, and their long eye-relief counterparts helped reduce eye injury from recoil. Each 100° Series Nitrogen-Purged Waterproof eyepiece is internally sealed and purged with inert, dry nitrogen gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus, and to maximize the life of the internal coatings. To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes. All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
These eyepieces with their huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods.These ultra-wide angle eyepieces played a critical role in the military for aiming at targets, and their long eye-relief counterparts helped reduce eye injury from recoil.Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus. This also maximizes the life of the internal coatings. To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body.
Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing.
All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body.
Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing.
All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body.
Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing.
All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body.
Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing.
All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body.
Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing.
All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
With the introduction of the 68° Series we are pleased to make two important improvements in eyepiece manufacture, the first being 15 layer Enhanced Multi-layer Deposition (EMD™) coatings on all glass-to-air surfaces to gain maximum contrast, and waterproofing the eyepiece with the use of Argon gas purging instead of standard Nitrogen gas. Although Nitrogen is a fine choice that will last for many years, Argon is a larger molecule that maintains its protective properties over a wider range of temperatures, and is even more resistant to diffusion thereby further extending the protective waterproof environment of the eyepiece body.
Through computer-optimized design, a careful selection of optical glasses, and enhanced multi-layer deposition coatings, the Explore Scientific 68° Series™ eyepieces produce long eye-relief and ensure high image-correction, a flat field, and high contrast across the entire image field. An excellent choice for those who make extended visual studies of detail with subtle variations of brightness, and for those who must wear glasses while observing.
All 68° Series eyepieces are fully EMD (Enhanced Multi-Layer Deposition) coated and edge-blackened to produce superior contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Explore Scientific 82° Series™ extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.
The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the "averted vision" technique to study faint details across a huge field-of-view. The 82° Series eyepieces come with a twist-up rubber eye-guard that raise to the desired height for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.
All 82° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
The "Wow-effect" eyepiece: You see deep sky objects as if you were in space! It makes you forget that you are looking through a telescope. This makes up for an unforgettable observing experience, that even exceeds the expectations of demanding amateur astronomers. Of course it has the same specifications as the already well established 100° eyepieces: inert gas purged, and waterprrof, the high end EMD coatings are protected from the outdoors. Dust, fungus, humidity and cleaning solutions cannot harm the precious eyepiece for years of observing to come!
If an observing session is a relaxing and joyful experience is heavily
dependend on the choice of eyepieces. People wearing glasses very often
have the problem to see the entire field of view when they are using
eyepieces with large apparent fields. This problem is now history. The
new 92°- LER eyepieces by EXPLORE SCIENTIFIC do not only offer excellent
image sharpness and high resolution and contrast over the enourmous
full field of view - you can see that full field without problems even
with glasses on. Fatigue due to tense head positioning and strained
viewing simply does not happen because of the excellent viewing comfort
these eyepieces provide even to observers wearing glasses. Enjoy the
unique combination of excellent image sharpness out to the edge of the
field even for fast optics, superior contrast and unmatched viewing
comfort. Eyepieces with perfect combinations of various modern glass
substrates and highest standards in manufacturing, quality control and
service are a tradition at EXPLORE SCIENTIFIC Tradition -
the outstanding resolution and sharpness to the very edge equal that of
our eyepieces of the 100° line.These eyepieces are the choice for
observers wearing glasses - with excellent performance and durability.
The rubber inlet and the foldable eyecups make handling and using in the
field easy. The patentet EMD-coating teams up together with
internal baffles to produce high contrast images and to prevent reflexes
and ghosting.The argon purging effectively prevents internal
fogging, and you don´t have to deal with dirt, fungus or cleansing
fluids getting between the lenses.The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come. FEATURESLarge eye distance and great image sharpness
Excellent viewing position for people with glasses
Excellent field sharpness even with fast optics
Patented EMD"-coating to maximize contrast
Blackened lens edges to avoid reflexes
Argon-purging prevents internal fogging, the sealing facilitates cleaning
Stainless steel barrel with conical security cutoff
Gift box with magnetic lock - additional soft pouch for easy transport in the field
SCOPE OF DELIVERY
Eyepiece
Box
Pouch
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 92°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the enourmous full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific Tradition -
the outstanding resolution and sharpness to the very edge equal that of our eyepieces of the 100° line.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating teams up together with internal baffles to produce high contrast images and to prevent reflexes and ghosting.The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses.The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.
One of the most important obstacles for the exploration of the night sky
is the brightening of the night sky by artificial lights, such as
streetlights. The night sky is not really dark in the vicinity of towns
or cities, which reduces the visibility of objects beyond the solar
systems enormously. Depending on the type of the celestial object it is
possible to increase the contrast dramatically by blocking the annoying artificial light. The EXPLORE SCIENTIFIC O-III filter uses a characteristic property of the so called emission nebulae.
Those objects glow in special colours, the so called emission lines.
Those emission lines are linked to chemical elements - in this case
oxygen. The EXPLORE SCIENTIFIC O-III nebula filter blocks all other colours (and thereby nearly all of the artificial light) and only the two emission lines of the oxygen can pass the filter.
The result is astonishing: suddenly nebulae are visible at locations
that were completely empty without filters. In suburban skies for
example the veil nebula NGC 6992 is almost not visible with a 200mm
telescope. By using this filter you can see the nebula and its
structures without problems. A must for every visual observer.
The EXPLORE SCIENTIFIC nebula filters come with a individual test certificate - your guarantee to receive a premium filter.FEATURESenables the observation of so called emission nebulaeblocks almost the entire artificial lightonly the two emission lines of ionised oxygen passes the filterWHAT'S INCLUDED1x 2" O-III nebula filter
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects beyond the solar system enormously. Depending on the type of the celestial object, it is possible to dramatically increase the contrast by blocking annoying artificial light. The EXPLORE SCIENTIFIC UHC filter "zeros in" on the wavelengths of so-called emission nebulae. Those objects glow in special colours - their emission lines. Those emission lines are linked to chemical elements - in this case hydrogen at 486nm and 656nm, plus oxygen at 496nm and 501nm. The EXPLORE SCIENTIFIC UHC nebula filter blocks all other colour wavelengths (and thereby nearly all of artificial light) and only the emission line of the hydrogen and oxygen can pass the filter. The result is astonishing: suddenly nebulae are visible at locations that were completely invisible from, without filters. In suburban skies, for example the Owl-nebula M97, the Veil-nebula NGC 6992 or even the bright Dumbell-nebula M27 are not clearly visible. Using this filter allows you to see nebulae and their structures in much finer detail. A must for every visual observer.
The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
Besides air turbulence, the brightening of the night sky is the biggest obstacle to observing faint objects beyond the solar system. Street lamps and other artificial lighting mean that the sky in human settlements is no longer really black. This affects the contrast and thus the perception of deep-sky objects. Depending on the type of celestial object, however, part of disturbing artificial light can be filtered out, making it easier to observe fainter targets.The EXPLORE SCIENTIFIC CITY LIGHT SUPRESSION - or CLS - filter uses the fact that the artificial lighting is not evenly distributed over the entire spectrum. These colours - in the case of the EXPLORE SCIENTIFIC CLS nebula filter, above all the typical colours of mercury and high-pressure lamps, used in street lighting - are suppressed, but the emissions of deep-sky objects are allowed through. With a slightly brightened sky, some relatively bright deep-sky objects are practically invisible with a telescope, for example the large galaxy M101. Using this filter makes observation much easier. A must have for any visual amateur astronomer. The CLS can also be used as a useful photographic filter - helping to improve the quality of your telescopic deep sky photos.The EXPLORE SCIENTIFIC nebula filters are delivered with an individual test report - so you can be sure of receiving high-quality filters.SPECIFICATIONS:eliminates disturbing light - e.g. from street lightingenables observation of faint deep sky objectsWHAT'S INCLUDED:1x nebula filter
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lights, such as streetlights. The night sky is not really dark in the vicinity of towns or cities, which reduces the visibility of objects bejond the solar systems enourmously. Depending on the type of the celestial object it is possible to increase the contrast dramatically by blocking the annoying artifical light. The Explore Scientific H-beta filter uses a characteristic property of the so called emmission nebulae. Those objekcts glow in special colors, the so called emmission lines. Those emmission lines are linked to chemical elements - in this case hydrogen. The Explore Scientific H-beta nebula filter blocks all other colors (and thereby nearly all of the artificial light) and only the emmission line of the hydrogen can pass the filter. The result is astonoishing: suddenly nebulae are visible at locations that were completely empty without filters. In suburbian skies for example the horsehead nebula is almost not visible with a 300mm telescope. By using this filter you can see the nebula and its structures without problems. A must for every visual observer.
The Explore Scientific nebula filters come with a individual test certificate - your guarantee to receive a premium filter.
The neutral density filter transmits light uniformly across the entire
visual spectrum. It serves as an excellent filter to reduce glare and
irradiation when observing the Moon with any telescope 4"(10.2cm) and
larger. The ND96 filter may also be employed in the splitting of close
double stars where one of the binary pair significantly exceeds the
other in brightness.
Color Filter #ND96 Moon Filter (0.9 density; 13% transmission)
The EXPLORE SCIENTIFIC 3" 0.7x Reducer/corrector, reduces a compatible telescope's focal length by a factor of 0.7x (for around f/8) and 0.8x (for around f/10) respectively. The reducer/corrector not only reduces the focal length but also flattens the field. Although originally developed for the Explore Scientific ED-APOs 127mm and 152mm, the reducer can be used with many systems - for example with the Explore Scientific ED-APOs 102mm and 165mm (please note, this will not work on the Explore Scientific 80mm ED Apo refractors though). With certain telescope focal lengths, a slight restriction of the correction at the edge of the image field can be expected when using full-frame sensors. This unit comes with 3" barrel adaptor for direct focuser thread M54x0.75 (the standard focuser thread of the Explore Scientific Essential series of ED Apos) and T2 camera adaptor. This reducer/corrector features a free aperture of 65mm, so that it can be used even with cameras that have a large sensor - if the telescope allows for this.
Note: As previously mentioned, this Reducer/corrector comes with a screw on ring, which fits the standard focuser thread of the Explore Scientific Essential series of ED Apos. For telescopes which are equipped with the 2.5" HEX Focuser, the optional screw-on adapter part no: 0510366 is needed. Other telescopes, not in the Explore Scientific range, with standard 2" push-fit focusers will need the Explore Scientific 2" Adaptor for 3" Corrector - part no: 0510364 to get this reducer correctly fitted.
SPECIFICATIONS
Reduces the focal length by 0.7x at f/8
Flattens the field for astrophotography
Developed for ED127 und ED152 APO telescopes
Also fits Explore Scientific ED102 and ED165 telescopes - and others
Free aperture: 65mm
Inner thread for telescope adaption: M76x0.75mm
Outer thread for camera adaption: M72x0.75mm
3" focuser barrel adaptor included
Adaptor for Explore Scientific focuser M54x0.75mm included
T2 camera adaptor M42x0.75mm included
Diameter: 78.5mm; length: 100mm
Length without adaptors: 52mm
Weight without adaptors: 530g
What's Included
Reducer/Flattener
3" focuser barrel adaptor
Adaptor for Focuser M54x0.75mm
T2 camera adaptor M42x0.75mm
Dust caps
Enables you to connect a camera to telescopes that accept 2" barrel eyepieces. You will need a T2-ring for your special camera type also. The very special feature of this adaptor is the very short mechanical design (2.0mm) which enables the camera use also on telescopes with a short focal range. This adapter is also prepared to use with 2" filters.
An amici prism allows for a comfortable 90° viewing position and creates an erect image without left-right reversal. This makes it especially suitable for nature observations but it can also be very helpful with astronomical observations. Particularly beginners may find it easier to orientate in the sky when they compare the view through the telescope with what they can see with their naked eyes.With this amici prism an astronomical telescope can be used as a powerful spotting scope.Suitable for refractor telescopes as well as Maksutov-Cassegrain style telescopes with 1,25" visual back.FEATUREScomfortable eye relief for refractor telescopes90°- viewing position and image without left-right reversalastronomical telescope turns to a powerful spotting scope1,25" visual backfully multicoated prismSCOPE OF DELIVERYAmici Prism 90° 31.7mm/1.25"
Mount and Tripod. The BRESSER EXOS 2 is a rugged mount with high rigidity and precision tracking for visual observation and astrophotography. The tripod is extremely rigid to suppress vibrations really well. This model is very well machined and has an illuminated polar finder scope and precise graduated circles. A powered twoaxis control (BRESSER Exos Duo) or a GoTo-Kit is available as an optional extra. The BRESSER EXOS 2 can take the weight - depending on length and use of up to 13 kg. This allows you to use refractors of up to 152 mm aperture and mirror telescopes of up to 203 mm aperture.CHARACTERISTICS
Stable parallactic mount with fine drive in both axes
Ball bearings in both axes for more precise movements
Stable height adjustable stainless steel tripod (min. 69 cm / max. 109,5 cm )
Load capacity up to 13 kg payload
Retrofittable with the BRESSER Star Tracker Goto Kit ( item no. 4951750 )
Circular bubble for easy horizontal alignment
Pole height scale for setting the latitude
Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software
Pole finder scope with optional illumination ( item no. 4964212 )
Tripod weight: 4.7 kg
Mount weight: 5.6 kg (without counterweight)
Total weight incl. counterweight: 14.8 kg
Batteries: not included
SCOPE OF DELIVERY
BRESSER EXOS-2 mount
Adjustable polar finder scope with optional illumination
Stainless steel tube field tripod with accessory tray
1x 4.5 kg counterweight
BRESSER EXOS-2 GoTo Equatorial Mount. Mount, tripod and hand box with computer. This German mount has tracking motors in both axes that follow celestial objects very precisely.The handbox with GoTo works reliable and controls the mount in every situation. Precise ball bearings in both axes ensures minimal backlash at all nine possible tracking speeds.The battery pack (12 V) is conveniently fastened to the tripod shelf and takes eight size "D" batteries.The mount rests on a very tough and rigid stainless steel tripod and can take optical tubes of up to 13 kg. GOTO - Stargazing at the push of a button! The Startracker GoTo System enables beginners to start astronomical observations in just a few minutes, and guides you to objects that are hard to localize through a standard finder scope.Just push the button and the GoTo System will find planets, nebulae or galaxies for you and position your telescope automatically and precise.The GoTo System database includes thousands of astronomical objects.The Messier mount with GoTo System allows you to observe without tedious searching, or image faint objects that are hard to find in a standard finder scope.The BRESSER StarTracker GoTo systems uses servo motors for both axes and features an ST-4 compatible autoguiding input. Guiding aggressivity can be set on the mount itself. The menu navigation of the Startracker Handbox is also multilingual and offers the settings of German, English, French, Spanish and Italian.CHARACTERISTICS MOUNT
Stable parallactic mount with fine drive in both axes
Ball bearings in both axes for more precise movements
Stable height adjustable stainless steel tripod ( Min. 69cm / Max. 109,5cm )
Load capacity up to 13 kg payload
Circular bubble for easy horizontal alignment
GoTo Mount with motors and hand box controller, for easy finding and guiding moon, planets, stars and much more
ST-4 compatible autoguider interface
Pole height scale for setting the latitude
Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software
Pole finder scope with optional illumination ( item no. 4964212 )
Tripod weight: 4.7 kg
Mount weight: 6.7 kg (without counterweight)
Total weight incl. counterweight: 15.9 kg
Batteries: not included
SCOPE OF DELIVERY
Equatorial EXOS 2 GOTO mount with stainless steel tripod and Startracker handcontroller
Adjustable polar finder scope with optional illumination
Stainless steel tube field tripod with accessory tray
1 x 4.5 kg counterweight
Plenty of space for lots of photo studio equipment - The optimal solution for simplified mobilty and safe storage.The spacious BRESSER BR-B103 studio case with practical ball-bearing wheels and reinforced corners offers enough space for studio flashes, lamp tripods, softboxes and can be used as a bag or trolley. The interior can be freely arranged with the padded space dividers using Velcro fasteners, so that every accessory finds a safe place. Smaller accessories can be stored in the mesh pocket on the lid of the studio trolley.The padded BRESSER BR-B103 studio case has reinforced feet on the bottom to ensure a stable stand.PROPERTIES2 in 1 transport bag and trolleyStudio case with 2 wheelsVariable interior divisionPull handleInner dimensions: 101 x 30 x 33 cmOuter dimension: 108 x 32 x 35 cmSCOPE OF DELIVERYStudio case with wheels
Filter Set 1 is recommended for Moon & Planets from 50mm (2'') Aperture
Set 1 includes the following filters:
Explore Scientific Filter 1.25" Light Yellow No.8 - 0310268
Watching the Moon surface through the filter, the contrasts will enormously increase. Same with planet Mars. On the huge planet Jupiter, when using the filter, you can even see the contrasts between the cloud-bands and a lot more details. Starting with a telescope diameter of 8“ and a clear sight, you even get to see various details of Saturn.
Explore Scientific Filter 1.25" Orange No.21 - 0310273
This one really supports the detection of the dark areas on the planet Mars. The details of the clouds of Saturn and Jupiter are also so much more visible through the Filter.
Explore Scientific Filter 1.25" Blue No.80A - 0310264
The color of light blue really supports watching the high clouds on Mars. The contrast increases. The dark red structures will be shown even darker, so this is the perfect filter for watching the big red Flecks on the gas planet Jupiter. The rings of Saturn will be accentuated, the structures of the Venus Atmosphere will be even finer.
EXPLORE SCIENTIFIC 1.25" Filter Grey ND0.9 - 0310245
The neutral density filter transmits light uniformly across the entire visual spectrum. It serves as an excellent filter to reduce glare and irradiation when observing the Moon with any telescope 4"(10.2cm) and larger. The ND96 filter may also be employed in the splitting of close double stars where one of the binary pair significantly exceeds the other in brightness.
What ist a color Filter for and do we really need it?
Color Filters darken the light slightly, that reaches the eye or the sensor of the camera. This eliminates for instance stronger transitions. The result is that your picture turns out with more contrast which automatically shows more details.
FEATURES
Made from high-quality optical glass
Filter glass is absolutely parallel
All optical surfaces have anti reflex coatings
Filter housing from black anodized aluminum
Filter threads on both ends (female/male)
Multiple filters usage is possible
SCOPE OF DELIVERY
4pcs color filter
4pcs protection-case
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 62°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific - the outstanding resolution and sharpness to the very edge.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.Eye relief: 11mm
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 62°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific - the outstanding resolution and sharpness to the very edge.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.Eye relief: 15mm
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 62°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific - the outstanding resolution and sharpness to the very edge.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.Eye relief: 20mm
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 62°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific - the outstanding resolution and sharpness to the very edge.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.Eye relief: 22mm
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 62°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific - the outstanding resolution and sharpness to the very edge.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.Eye relief: 28.mm
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 62°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific - the outstanding resolution and sharpness to the very edge.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.Eye relief: 13mm
If a observing session is a relaxing and joyful experience is heavily dependend on the choice of eyepieces. People wearing glasses very often have the problem to see the entire field of view when they are using eyepieces with large apparent fields. This problem is now history. The new 62°- LER eyepieces by Explore Scientific do not only offer excellent image sharpness and high resolution and contrast over the full field of view - you can see that full field without problems even with glasses on. Fatigue due to tense head positioning and strained viewing simply does not happen because of the excellent viewing comfort these eyepieces provide even to observers wearing glasses. Enjoy the unique combination of excellent image sharpness out to the edge of the field even for fast optics, superior contrast and unmatched viewing comfort. Eyepieces with perfect combinations of various modern glass substrates and highest standards in manufacturing, quality control and service are a tradition at Explore Scientific - the outstanding resolution and sharpness to the very edge.These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patentet EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.Eye relief: 12mm
Field flattener without reduction factor for Explore Scientific ED80 , ED102 and ED127 APO Refractors
The imaging plane of many telescopes is not flat but curved. This means that only the area in the centre is perfectly focused - the edge becomes blurred. The human eye can usually compensate for this image property, but a camera shows increasing blurriness towards the edge of the image field. The Explore Scientific Zero X field flattener eliminates the field curvature in many telescopes with a focal length of approx. 480 to 952 mm. The Zero X field flattener was calculated and developed for Explore Scientific ED80, ED102 and ED127 apochromats with focal ratios of F=6.0 and F=7.5. The image sharpness at the edge is dramatically increased. The stars appear round and no longer distorted - a clear benefit for the whole image aesthetics. The Zero X image flattener can be used not only with Explore Scientific Apos, but also with many other Apos. This flattener does not change the focal length of the telescope.
Correction for up to full-frame camera sensors (24x36mm)
The Explore Scientific Zero X image flattener has been developed due to the rapid development of ever larger camera sensors. With it, there is finally a field flattener available that illuminates and corrects the field of view for full-frame camera sensors up to 24x36 mm.
How to use the Zero X field flattener with M48 thread connection
This field flattener has a 2 inch (50.8 mm) plug-in connection on the telescope side, with which it is inserted into the telescope instead of an eyepiece or star diagonal mirror. On the camera side, there is a standardised M48 x 0.75 mm connection thread. This M48 connection thread offers a larger free inner diameter than the usual T2 (M42) thread and prevents vignetting when using large camera sensors. With an optionally available and camera-specific adapter ring, a DSLR camera can be connected to it. The working distance is already set at 55 mm. Of course, mirrorless cameras or special astro cameras can also be used with the M48 thread connection. For this, the appropriate M48 spacer sleeves or adapters are additionally required to set the right working distance of 55 mm. This must always be done with every corrector or field flattener so that the best possible field flattening is achieved.Filter thread on telescope side availableThe telescope-side 2.0 inch plug-in sleeve has an M48x0.75 filter thread (internal thread). Individual 2.0 inch colour or nebula filters can be inserted here to increase the contrast of the images.FEATURESField flattener for Explore Scientific ED80, ED102 and ED127 APO telescopesRemoves field curvature from telescopesProduces round stars even at the edge of the image fieldImage sharpness at the edge is drastically increasedA clear benefit for the whole image aestheticsCorrection of field curvature for up to full-frame camera sensors (24x36 mm)Image field flattener without reduction factorOn the telescope side with 2 inch (50.8 mm) plug-in connection and M48x0.75mm filter threadCamera side with large M48 threaded connectorWorking distance of 55 mm between field flattener and camera sensorFor telescopes with a focal length of approx. 480 to 952 mmOptimised for telescopes with focal ratios from F=6.0 to F=7.5Can also be used for various other APOsFully multi-coating on all lens surfacesHousing made of lightweight aluminium, black anodisedAluminium dust cap for M48 threadSCOPE OF DELIVERYZero X field flattener (1 piece)Dust caps
This reflecting telescope shows not only the big planets, but also bright deep-sky objects when you are observing under dark skies. Fully equipped, and with a mount that is easy to use, this telescope is ideal for a beginner that has no astronomical knowledge, but wants to immerse him or herself in space. Explore the moons and cloud bands of Jupiter or the majestic rings of Saturn, or find other galaxies, star clusters and nebula on a moonless night. Please note: Reflector telescopes with optical design “Newton” are very good for astronomical observing at the starry night sky. But these telescopes are not well usable for observing landscape and nature during daylight. Therefore we suggest refractor (lens) telescopes for landscape and nature observing. FEATURESreflector telescope for beginnersobservation of the planets and bright deep sky objectsaltazimuth mountSCOPE OF DELIVERYtelescopaltazimuth mount with tripodeyepieces (4 mm, 9 mm, 25 mm)finder scope 6x30erecting lens 1,5xBarlow lens 3x
The BRESSER First Light AR-102/1000 telescope is ideal for both ambitious beginners and experienced astronomers.
Discover the stunning features of Orion Nebula, which is located at a distance of 1500 light years (14,200,000,000,000 km) from earth!
The stable mount keeps the telescope stable, even at higher magnifications. Thanks to the high-quality mechanics, you can take your own photos of the moon and marvel at the dividing line between night and day (terminator).
The refractor telescope features an equatorial mount (also called a parallactic mount). Thanks to this two-axis mechanism, it is possible to compensate for the rotation of the earth, enabling you to precisely track your desired celestial object.
The telescope also comes with a wide range of accessories for exploring the night sky, including a prism for an upright and laterally correct image.
FEATURES
High-quality achromatic refracting telescope
Diameter: 102 mm / Focal length: 1000 mm F/9.8
EQ-3 equatorial mount
Height-adjustable tripod with accessory shelf
Made primarily of metal
Excellent focuser
Prism for an upright and laterally correct image
Includes wide range of accessoriesDELIVERY CONTENT
First Light AR-102/1000 optical tube
EQ3 mount
Tripod with accessory shelf
2 eyepieces (PL10 & PL25)
LED red dot finder
90° upright prism
3x Barlow lens
Smartphone holder
60 Years BRESSER 1957-2017 Anniversary Edition - BRESSER Classic long focal length Refractor telescopesObserving the night sky through the BRESSER Classic telescope like Galilieo Galilei or Joseph von Fraunhofer centuries ago is a very special experience. Gaze at the craters of the moon or detect the rings of Saturn with your BRESSER Classic. The telescope is equipped with an alt-azimuth mount and provides exquisite views onto the surface of earth's neighbour, the moon. The sharp optics and low weight of the BRESSER Classic make it a versatile beginner's telescope for the young and young at heart astro amateur. The classical lens system with a diameter of 60mm and a focal length of 900 mm yields excellent image quality. The alt-azimuth mounting with vertical adjustment and rugged aluminium tripod perfectly round off this beginner's set.With the including smartphone camera holder you are able to capture your observation objects and share it with your friends, family etc. The alt-azimuth mount of this refractor telescope ensures an easy and quick introduction to astronomy. This telescope is particularly suited to observing celestial bodies in our solar system such as the moon or the nearer planets. The attached accessories and the astronomy software included mean beginners can rapidly achieve success.FEATURES beginner's set with all necessary accessories to start observing immediatelyoptical system: achromatic refractoralt-azimuth mountastronomy software for an easy start into astronomy even for absolute beginnersSCOPE OF DELIVERYtelescopealt-azimuth mount5x24 viewfinderErecting lens 1,5x diagonal mirror 1.25" (31,7 mm)eyepieces 1.25" (31,7 mm): 4mm, 12,5mm und 20mmaluminium tripod with accessory trayastronomy software (download version)smartphone camera adaptermanual
Featuring a large mirror with a high focal length, this telescope allows you to observe a wide range of night sky objects. Thanks to the catadioptric system (integrated Barlow lens), the tube has a short design-despite the high focal length-making the telescope highly portable. The BRESSER Spica Plus also comes with high-performance mechanics, including a premium equatorial mount that allows you to set up the telescope in no time. A focuser is attached to the side of the tube, as is standard on a Newtonian reflector telescope. It comes with two eyepieces for observing at different magnifications. Explore the planets of our solar system and discover new worlds. And if youd like to capture your observations to share with others, you can take photos through the telescope using the supplied smartphone camera adapter.
Please note that Newtonian reflecting telescopes are ideal for astronomical observations, but are not suitable for observing wildlife and landscapes. For observing wildlife and landscapes, we recommend BRESSER refracting telescopes.FEATURESTelescope for observing the night sky and the sunOptical system: Newton reflectorMax. useful magnification: 260xLens diameter: 130 mm Focal length: 1000 mm Aperture ratio: f/7.7Mount: Equatorial mountEyepiece diameter: 31.7 mm (1.25) DELIVERY CONTENTTelescope with mountLens sun filterMoon and planet filter set (4 pcs)Eyepieces: 4 mm, 20 mmLED finder scope3x Barlow lensSmartphone cameraAluminium tripod Accessory trayAstro R-Lite torch
Set up and start being amazed right away: the BRESSER Arcturus 60/700 AZ lens telescope takes you one step closer to the fascinating world of planets and star clusters. The complete astronomy set includes everything you need for your immediate start in celestial observation: an astronomical lens telescope with 60 mm aperture and 700 mm focal length, an azimuthal mount, a tripod and many accessories. The system is very easy to use – perfect for introducing children to the exciting hobby of astronomy.
Simply an astronomical classic – the telescope
A well-tried principle: this classic lens telescope – also called an achromatic refractor of the Fraunhofer type – shows beginners and children the beauties of the night sky. The starter telescope offers good imaging properties thanks to its modern, precisely coated optics. The large focal ratio of about 1 to 11.7 (F/11.7), which results from the ratio of the 60 mm aperture and 700 mm focal length, delivers sharp images with good contrast. Ideal for exploring our Moon, the planets, but also open star clusters and globular clusters with your own eyes. But how big do these celestial objects appear? With its resolving power determined by the aperture size, the telescope easily delivers really sharp images up to about 120x magnification. Technically, even more is possible using this beginner’s telescope – theoretically up to 525x with the included accessories. However, as the magnification increases, the image usually becomes more and more blurred. In addition, the telescope is not the only factor determining the possible magnification. The air turbulence in the atmosphere is always an important criterion as well (seeing conditions).
Your foundation for moving observations – mount and tripod
Once you have found the right location for your astronomical adventures, attach your telescope to the height-adjustable aluminium tripod with azimuthal mount. The easy handling of this azimuthal mount allows you to move effortlessly from one astronomical sight to the next. Simply swing the starter telescope manually to the left and right, up and down – just like a normal photo tripod. In order to keep eyepieces, solar filters etc. within reach at all times, just place your accessories on the practical storage plate between the tripod legs.
Everything for your astro quickstart – the accessories
In order to enable you to see as much as possible, the beginner’s telescope comes with an extensive range of accessories. With the LED viewfinder, for example, you can keep track of the sky. It’s a direction finder that you mount parallel to the actual telescope. It projects a red dot onto a small ground-glass screen. When you look through it, the red dot appears to be floating in front of the sky, exactly where the optics of your telescope are pointing. This makes it easier to find celestial objects and to align the telescope accurately – just before you look more closely with the higher magnification. And how high that is, you determine by choosing the appropriate eyepiece. Two are already included in the set: 4 mm and 20 mm. Moreover, you can triple the magnification of the eyepieces with the 3x Barlow-lens. If at some point you want to extend your field of view with additional eyepieces, this poses no problem at all. The socket diameter of 1.25 inch (31.7 mm) corresponds to an international and manufacturer-independent standard. This offers you a wide choice of optional eyepieces you can use with your telescope.
For you to direct your gaze comfortably to star clusters and planets, the 90-degree diagonal mirror allows you to easily look into the starter telescope. This way you don't have to lie down under the entry-level telescope when the optics are pointing at the sky. Instead, you just look in from the side.
However, not only the night holds numerous interesting sights for us. During the day, especially our nearest star is worth a look. So take the solar-filter and direct your gaze safely at sunspots and granulation on the Sun. WARNING: Never point the telescope at the Sun without the solar filter!
If you want to capture and share your discoveries, just take photos of the Moon, Sun and more using the included smartphone adapter.
FEATURES
Beginner’s telescope for astronomy
60 mm aperture and 700 mm focal length
Achromatic refractor type Fraunhofer
Ideal for observing the Sun, Moon, planets and star clusters
Height-adjustable tripod with azimuthal mount
Easy to use, therefore suitable for children
Focal ratio F=11.7, thus sharp image and high contrast
Two eyepieces and one Barlow lens with 31.7 mm (1.25 inch) sockets for different magnifications
Safe solar observation with the included solar-filter
First steps in astrophotography with smartphone-camera-adapter
SCOPE OF DELIVERY
Starter lens telescope
Aluminium tripod
Azimuthal mount
Eyepieces: 4 mm and 20 mm (1.25 inch sockets)
Barlow-lens 3x (1.25 inch socket)
Star diagonal mirror
LED red dot finder
Solar-filter
Smartphone camera adapter
Accessory tray
Astronomy software for download
Instruction manual
The 90/900 refractor telescope is a classic achromatic refractor and can be used for either astronomy or nature observations (e.g. of wild animals). The long focal length (900 mm) makes the telescope a specialist for observing the Moon, planets and bright objects outside our solar system. Saturn's majestic rings and giant storms on Jupiter can be seen, as well as the brighter emission nebulae, galaxies and star clusters if you observe on a dark, moonless night away from city lights. The sturdy equatorial mount can be aligned to the Pole Star, Polaris, and makes tracking objects by hand child's play.Three eyepieces, a 20mm, 12.5mm and 4mm, giving 45x, 72x and 225x magnification respectively, are included and also a 3x Barlow lens and Moon filter as standard. A red LED reflex finder, once aligned to the telescope's main optical axis, will help you find your way to a huge array of potential targets for observation in the night time sky.The EQ3 mount is provided with slow motion flexible cables to help you follow objects accurately and compensate for the effects of the Earth's rotation. The mount can also be upgraded to a simple RA motor tracking kit with additional purchase.FEATURESOptical System: Achromatic RefractorLens diameter: 90mmFocal length: 900mmMagnification: 45x-675xMount: EQ3, equatorialTripod: Aluminium with accessory trayWHAT'S INCLUDED OTAMountAluminium tripodEyepieces 31.7mm (1.25"): H-20mm, H-12mm, SR-4mm3x Barlow LensMoon filterLED viewfinderStar map
Observing the stars like a professional - very easy with the BRESSER JUNIOR refractor telescope 70/700 EL. It is a complete system for the exploration of the wonders of the universe, consisting of telescope, mount, tripod and all accessories needed. With an aperture of 70 mm it reveils already many details of celestial objects. The mount can not only swing the telescope left / right and up / down, it can also be used in a so-called equatorial mode, as scientists do in their observatories (see further under Special features). An additional finder scope mounted on the telescope is useful for locating celestial objects. With the erecting lens many exciting things in the environment can also be seen during daytime. With the height-adjustable tripod, the telescope can each be brought to an optimal height for large or small observers. The supplied diagonal mirror ensures a comfortable viewing. At night the moon and planets may like Saturn and Jupiter can be explored. But thanks to the 70 mm wide aperture of the telescope also many celestial objects outside our solar system are within the reach of this telescope. Star clusters many light years away and nebula impress young and old stargazers. SPECIAL FEATURESMounting with wedge: At first glance, the NG mount of the refractor telescope 90/700 NG is a very ordinary azimuth mount: an axis for left / right and one for up / down, as we know it from normal camera tripods. This mode makes sense especially with observations during the day. With the built-in wedge it can be tilted, so the whole mount can be converted to an equatorial mount for astronomy with a single operation. For use of the equatorial mount an axis is aligned with the North Star. When tracking a celestial object only a single axis needs to be moved, which clearly is a relief compared to tracking an object on the night sky with mounts that only have left / right and up / down axis. FEATURESideal beginner's setsuitable for lunar, planetary and nature observationsmount can be used in two ways: alt-azimuth and equatorialSCOPE OF DELIVERYrefractor telescope 70/900three eyepieces: 4 mm (225x), 12 mm (75x) and 20 mm (45x)heigth-adjustable aluminium tripod with accessory tray1.5x errecting lens for a laterally correct and upright imageNG mountfinderscope 6 x 25astronomy software for PC90° diagonal mirror
The BRESSER JUNIOR refracting telescope 50/360 with tent lets you start your exciting journey of discovery across the night sky from your own little astro corner. The achromatic refractor telescope is set up and ready for your first astronomical observations in no time. Due to the azimuthal mount it’s child's play to operate: simply swing the telescope to the left and right, up and down, until your target object appears in the field of view.
Explore celestial eye-catchers comfortably through the children's telescope
Look forward to exciting views of the lunar surface, the famous Orion Nebula or the impressive Pleiades. Using the eyepieces included in this telescope set, you can admire these and many other astronomical objects at 18x and 60x magnification. The zenith mirror always ensures a pleasant view during your celestial observations, because it allows you to look comfortably into your telescope for children from above.
Children's telescope – with astro tent for exciting adventures
Assembled in no time at all, the stylish tent in BRESSER Family design provides the right atmosphere for your space explorations. Flora, Lukas and Luna will be happy to share exciting moments with you during your new hobby. The tent with its dimensions of 100 x 100 x 130 cm also offers plenty of space for you to include a friend in your planning your next observations. Meanwhile you can always keep an eye on your surroundings from inside the sturdy tent thanks to the two round windows.
Great fun for little astronomy beginners: explore the wonders of the universe on your own with the BRESSER Family and the BRESSER JUNIOR telescope with tent.
FEATURES
Telescope for children aged 8 and above
Type: achromatic refractor
Easy operation due to azimuthal mount
Lens diameter: 50 mm
Focal length: 360 mm
Magnification: 18x and 60x
Star diagonal mirror for comfortable observations
Incl. tent in BRESSER Family astro-design
(suitable for indoor use only)
SCOPE OF DELIVERY
Telescope
Tripod with azimuthal mount
Star diagonal mirror
2 Eyepieces (20 mm; 6 mm)
Tent
Instruction manual
Would you like to go on a night walk and experience something out of this world? With a lens aperture of 60 mm this 60/700 refractor telescope already collects about 30 percent more light than a telescope with 50 mm aperture. The 60/700 already allows for higher magnifications – ideal to investigate in details like lunar craters. An additional finder scope mounted on the telescope makes it easier to locate objects in the sky. With the erecting eyepiece even during the day many exciting things in the surrounding can be observed. Due to the height adjustable tripod, the telescope can be brought to the right height for small or tall observers. The supplied diagonal mirror ensures comfortable viewing.Field of Application: At night the moon and planets like Saturn and Jupiter may be explored. But also impressive sparkling star clusters like the Pleiades impress young and old stargazers. With the included erecting eyepiece it is possible to get an unreversed, upright image, for example, for observation of nature during the day. Special features: Ultra light: The complete instrument with tripod weighs less than 2 kg! Thus, it can also be set up by young researchers themselves, at any time on the balcony or in the garden.
FEATURESChildren's telescope set for observing the moon, planets, and bright deep-sky objects
With 1.5x errecting lens for daytime observations
Aperture: 60 mm
Focal length: 700 mm
3 eyepieces included for different magnifications
Easy-to-use azimuthal mount
Star diagonal mirror for comfortable viewing
Includes 5x24 finderscope for easy location of objects
With compass for determining directions
SCOPE OF DELIVERYRefractor telescope 60/700Allt-azimuth mount (left/right and up/down)Continuously height adjustable aluminium tripod5x24 finder scope 90° diagonal mirrorThree eyepieces: 4 mm (175x magnification), 12.5 mm (56x magnification) and 20 mm (35x magnification)1.5x errecting lens for laterally correct and upright imagePocket compassHard carrying case
The BRESSER Venus 76/700 AZ reflecting telescope allows beginners to experience their very own stargazing hours quickly and easily. With the complete set, you are equipped with everything you need for your very own sky observations: an astronomical reflecting telescope with 76 mm aperture and 700 mm focal length, an azimuthal mount, a tripod as well as extensive accessories. And to guarantee a successful start in astronomy, the system is very easy to handle – the perfect first telescope for beginners!
Established technology for your easy start – the telescope
With this entry-level telescope, you will be able to admire the night sky through a classic Newtonian reflector. A little surprising for astronomy novices: with this particular type, you do not look in at the back of the telescope, but at the front and laterally. The advantage: even if the telescope aperture is directed vertically towards the sky, you can make your discoveries very comfortably. No need to bend down! In addition, the Newtonian reflector is very easy to use. The optics in this type of reflector telescopes are also impressive, because they are free of chromatic aberrations – resulting in good imaging properties at all times.
A sharp image with good contrast – the Venus reflector telescope achieves this with its large focal ratio of about 1 to 9.2 (F/9.2 – calculated from 76 mm aperture and 700 mm focal length). Thanks to its long focal length, the telescope for beginners shows you the Moon, Sun, planets, open star clusters as well as globular clusters in a particularly impressive way. And all this at a magnification of up to 150x in really sharp images! Technically, you can magnify even higher – theoretically up to 525x while using the included accessories. However, as the magnification increases, the sharpness of the image may slowly decrease. Of course, how much you can magnify depends not only on the resolving power of your telescope. The air turbulence in the atmosphere (seeing conditions) also plays an important role.
Note for nature lovers:
If you choose a Newtonian telescope like the Venus reflector telescope, you can look forward to a specialist in astronomical observation. However, the image is always displayed laterally reversed as well as upside down, which makes no difference when observing the sky. However, this type of telescope is less suitable for nature and landscape observation during the day. Would you like to use your new telescope for exciting nature discoveries as well? Then we recommend that you choose one of the BRESSER refractor telescopes.
A good foundation for a successful start – mount and tripod
The height-adjustable aluminium tripod and the azimuthal mount provide a firm footing and easy celestial navigation. Especially the azimuthal mount makes life easy for beginners, because it is very user-friendly: just like a typical photo tripod, you turn the telescope by hand to the left and right, up and down. This way, your favourite celestial objects quickly appear in your field of vision. Handy: to ensure that your astronomy accessories are always within reach, there is a storage plate between the tripod legs.
Everything that goes with it – the accessories
Out of the box straight to the fun of observing – with the complete astronomy set, you are quickly on your way to discovering the universe. The LED viewfinder helps you keep an eye on the sky. You just mount the direction finder parallel to the actual telescope and it projects a red dot onto a small ground-glass screen. This then appears to be hovering in front of the sky when you look through the viewfinder. And it does so at exactly the same spot that your telescope is pointed at. This way, the LED finder helps you to align the reflector telescope precisely and to find the celestial objects more easily.
When it comes to the level of detail in your observations, the Venus beginner's reflector telescope gives you a choice: the two included eyepieces (4 mm and 20 mm) allow you two different magnifications. You want to get an even closer look? Then simply triple the magnification of the eyepieces with the 3x Barlow lens. In addition, the socket diameter of 31.7 mm (1.25 inch) complies with an international and manufacturer-independent standard. So you can easily expand your set – and with it your astronomical horizon.
If you want to observe fascinating sights not only at night but also during the day, simply grab the solar filter. With it, you can safely admire spots and granulation on our nearest star – the Sun.
CAUTION: Never point the telescope at the Sun without the solar filter!
A new hobby leads to new impressions – and naturally you want to capture and share those. Therefore, you can easily use your mobile phone for your first steps into astrophotograpy with the smartphone adapter. Perfect for great snapshots of the Moon or the Sun, for example.
Look forward to exciting astronomical discoveries by day and night – with the BRESSER Venus 76/700 AZ reflector telescope.
FEATURES
Reflector telescope for beginners with 76 mm aperture and 700 mm focal length
Reflector type Newton
Good for observing Sun, Moon, planets and star clusters
Height-adjustable tripod with azimuthal mount
Easy to use even by beginners
Focal ratio F/9.2, thus sharp image and good contrast
Two eyepieces and a Barlow lens with 31.7 mm (1.25 inch) sockets for different magnifications
Safe solar observation with the included solar filter
First steps into astrophotography with included smartphone camera adapter
SCOPE OF DELIVERY
Refractor telescope
Aluminium tripod
Azimuthal mount
Eyepieces: 4 mm and 20 mm (1.25 inch sockets)
Barlow lens 3x (1.25 inch socket)
LED illuminated dot finder
Solar filter
Smartphone camera adapter
Accessory tray
Astronomy software download
Instruction manual
Who hasn't dreamed of a trip to the stars? The BRESSER Space Explorer MC 90/1250 automatic telescope will take you on an exciting journey into space. The telescope is easy to use, even for beginners - after aligning with one, two or three stars, you can choose an object from the 270,000 pre-installed celestial objects. Whether you want to observe a fascinating gas planet or a bright deep-sky object, the telescope will automatically move to your desired target. Thanks to the built-in motors in both axes of the azimuthal mount, the target object is automatically tracked so that you can sit back and enjoy the night sky.
Explore the night sky with the Maksutov telescope
Featuring a long focal length of 1250 mm, this telescope is ideal for making exciting discoveries in the solar system and beyond. Take a close look at the gas clouds on Jupiter, or watch the rings of Saturn through the telescope for the first time with your own eyes. Thanks to the 90 mm aperture, the telescope collects about 165 times more light than the human eye. However, it's not just the planets that look stunning through the high-quality optics. It's also worth venturing further afield into space: marvel at the sight of the Orion Nebula, 1,344 light years from Earth, or the famous Ring Nebula M57 in the constellation Lyra. The two included eyepieces with 25 mm and 12.5 mm focal lengths will show you these objects and many others at 50 or 100 times magnification. And because the best observation spots are usually not found in your immediate vicinity, the telescope features a compact Cassegrain design for easy transport. If there is a stable table at your observation site, you can even leave the tripod at home.
Everything you need for exploring the night sky
The telescope also allows you to capture images of the night sky. Simply attach the smartphone holder to the eyepiece, and take snapshots of planets, open star clusters and other night sky objects. The telescope is also ideal for observing and taking photos of the moon. In order to comfortably watch Earth's natural satellite through your Maksutov-Cassegrain telescope, it is best to use the included moon filter. The moon filter darkens the image slightly and increases the contrast to provide a more comfortable view. Perfect for exploring fascinating moon craters, lunar seas and shadows in the twilight zone! The telescope also comes with a star chart to help you navigate the night sky with its mythically named constellations.
Discover the night sky with ease with the BRESSER Space Explorer MC 90/1250 automatic telescope - also ideal for beginners!
FEATURES
Compact telescope with automatic mount and tripod
Pre-installed coordinates of over 270,000 celestial objects
Optical design: Maksutov-Cassegrain
Mirror diameter: 90 mm
Focal length: 1250 mm
Magnification: 50x / 100x (expandable)
Mount: one-armed, azimuthal
With LED viewfinder and integrated compass
Motor drives: in both axes
DELIVERY CONTENT
Tube
Mount
Steel tripod
Smartphone holder
2 pieces 31.7 mm Kellner eyepieces (K-25mm, K-12.5mm)
LED finder scope
Compass with bubble level
Moon filter
Astronomy software
Star chart
Instructions with warranty information
Set off on your personal journey to the stars with the BRESSER Sirius 70/900 AZ lens telescope. The complete astronomy set already includes everything you need to start observing the sky: the astronomical lens telescope with 70 mm aperture and 900 mm focal length, the azimuthal mount, the tripod and a wide range of accessories for fascinating discoveries. At the same time, it is very easy to operate - ideal to amaze even children with a view of the night sky.
Simply a stargazing classic - the telescope
With this lens telescope - a so-called Fraunhofer achromatic refractor - even total astro-beginners and children can easily explore the secrets of our night sky. Because this classic design impresses with its special user-friendliness and easy handling. To ensure that you enjoy good imaging properties when looking at the Moon, Sun, planets and star clusters, the entry-level telescope has been equipped with modern, precisely coated optics. The 70 mm aperture collects a total of 100 times more light than the human eye. And it is also convincing compared to a comparable 60 mm telescope: the light gathering capacity is 36 % higher and the resolving power is also better. Thus, with the 70 mm lens telescope, significantly more details are visible at the same magnification, e.g. on Saturn's rings or the two main cloud bands of Jupiter.
But how big do the celestial objects appear then? The resolution of the 70 mm lens lets you enjoy really sharp images at magnifications up to about 140x. For comparison: with a 60 mm aperture, this is only possible up to 120x. Technically, of course, the starter telescope can do even more - theoretically up to 675x with the included accessories. However, with increasing magnification, the image can slowly become more and more blurred. And how big you can really see the planets, star clusters and co. depends not only on the telescope. Another important factor: the air turbulence in the atmosphere (seeing conditions).
A sharp image with good contrast - this is what the starter telescope achieves with its large focal ratio of about 1 to 12.9 (F/12.9), which is calculated from the ratio of the 70 mm aperture to the 900 mm focal length. And you will see: Due to the long focal length, especially the Sun, Moon, planets, open star clusters and globular clusters become absolute eye-catchers.
Solid base for your stargazing hours - mount and tripod
Found the ideal location for your nocturnal explorations? Then attach the telescope tube to the height-adjustable aluminium tripod with azimuthal mount. And this azimuthal mount is particularly compelling due to one quality: operation is really child's play. Simply swing the telescope by hand to the left or right, up or down, as with a common photo tripod. This way you can quickly move your gaze from one celestial highlight to the next. And where are the accessories? Simply place them on the storage plate between the tripod legs. This way, eyepieces, solar filter and co. stay always within reach.
All the trimmings - the accessories
The beginner’s telescope comes with everything you need for a quick start in stargazing. When searching for celestial bodies worth seeing, take your first look through the included LED viewfinder. Because the direction finder helps you to align the telescope precisely and find astronomical objects. It works like this: The LED finder is mounted in parallel on the telescope tube. It projects a red dot onto a small ground-glass screen that appears to float in front of the sky when you look through it. And that is exactly where the aperture of your telescope points. This way, you can always keep an overview of the night sky - before focusing your attention on the details through the magnification of the telescope.
And you decide how high this magnification is by choosing the eyepiece. You will be amazed: the two eyepieces included in the set (4 mm, 20 mm) allow you to admire completely different images of the same object. If you one day want a change of perspective, you can expand your astronomy set with a large selection of eyepieces. For this purpose, the socket diameter is 1.25 inches (31.7 mm), which corresponds to an international, manufacturer-independent standard.
You like what you see, but would love more detail? Then simply insert the 3x Barlow lens between the telescope and the eyepiece. And you have tripled the magnification of the eyepiece!
Observation comfort and a pleasant view - this is what the 90-degree star diagonal mirror is made for. Even if your starter telescope is pointed vertically into the sky, you don't need to lie down underneath it to see anything. Instead, simply look in comfortably from the side and enjoy the view.
But it's not only at night that we should look skywards. For only during the day you can see a very special star: our Sun. So put the solar filter in front of the lens and safely look at sunspots and granulation on the Sun.
CAUTION: Never point the telescope at the Sun without the solar filter!
Would you like to share your discoveries with friends and family? Then take your first steps in astrophotography right away - and those are done in no time with the smartphone camera adapter for your beginner's telescope. The Moon, Sun, planets, open star clusters and globular clusters always make a good picture.
Discover what our night sky has to offer with the BRESSER Sirius 70/900 AZ refracting telescope.
FEATURES
Beginner’s telescope for astronomy
70 mm aperture; 900 mm focal length
Achromatic refractor type Fraunhofer
Ideal for observing the Sun, Moon, planets and star clusters
Height-adjustable tripod with azimuthal mount
Easy to use, also very suitable for children
Focal ratio F/12.9, therefore very sharp image and high contrast
Two eyepieces and one Barlow lens with 31.7 mm (1.25 inch) sockets for different magnifications
Safe solar observation with the included solar filter
Entry into astrophotography with smartphone camera adapter
SCOPE OF DELIVERY
Starter lens telescope
Aluminium tripod
Azimuthal mount
Eyepieces: 4 mm and 20 mm (1.25 inch socket)
Barlow lens 3x (1.25 inch socket)
Star diagonal mirror
LED illuminated dot finder
Solar filter
Smartphone camera adapter
Accessory tray
Astronomy software via download
Instruction manual
Highly corrected 80mm air-spaced triplet apochromat (with three lenses) and aluminium tube and a 2.5" high-precision HEXAFOC focuser. Apochromats are the ultimate choice in small to medium sized telescopes:
the combination of compactness, transportability, very high image
contrast and sharpness together with the possibility to make excellent
astrophotos cannot be bested. The advances in glass manufacturing during
the last few years have made true apochromats available to more
astronomy enthusiasts than ever before. The new Explore Scientific
FCD-100 Alu Hex
represents another major improvement in this field - the overall
correction (color and spherical) is setting new standards in this price
class. The optical design shows a polystrehl value of 0,97 indicating a
level of correction that is absolutely top of the line.This small
excellent apochromat is a very versatile telescope: the fast f-ratio
makes short exposure times possible. The high contrast and sharpness of
the image provide breathtaking views of large objects like the North
america nebula or the Andromeda galaxy as well as tack sharp planetary
images. The telescope is lightweight and compact - the dew shield slides
down the tube to minimize size for transportation. Revolutionary glass and precision
manufacturing created a telescope that offers observing joy on the
highest level. This does not only qualify this telescope as the ideal
travel scope, it is also the perfect choice for fast observations and
for astrophotography. The excellent 2,5" HEXAFOC focuser with 10:1 reduction is
perfect for this - the large inner diameter of 65mm prevents vignetting
by the focuser when the telescope is used for astrophotography with
large sensors.These very popular EXPLORE SCIENTIFIC Triplet ED APO Refractors we do offer in 3 different product lines:Essential Line: HOYA FCD-1 Glass lens, AL-Tube, 2.0" Rack&Pinion Focusser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112084(AL), 0112106(AL), 0112132(AL)), 0112155(CF + 3"FT)) Professional Line: HOYA FCD-100 Glas lens, AL/CF-Tube, 2.5" HEXAFOC Focusser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112086(AL), 0112108(AL), 0112109(CF), 0112134(AL), 0112135(CF))High-End Line: OHARA FPL-53 Glass lens, Carbon(CF) Tube, 3.0" Feather-Touch Focusser with 1:10, 2.0" Star Diagonal 99% Reflectivity (see Part No. 0112165(CF))SPECIFICATIONSAperture: 80mmFocal Length: 480mmFocal ratio: f/6Weigth: 2,6kgBackfocus: 150mm above 2" adaptorDesign: Apochromat with three lenses, two air spaces and FCD-100 glassSCOPE OF DELIVERY Optical tube with retractable dew-shield 2.5" HEX focuser with 1:10 gear reduction 2" Star Diagonal 99% reflectivity Universal dovetail - GP levelDust caps for front-lens and focuser Universal finder slot
NEW - now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.The combination of large aperture and short focal length predestine the BRESSER Messier AR-152S for the observation of large celestial objects. Experience the famous globular cluster M 13 in the constellation Hercules: Thousands of pinpoint stars stand before a black sky like so many diamonds spilled onto black velvet. Equipped with nebular filters you can watch the Gulf of Mexico in the North America Nebula and all the other celestial objects that Charles Messier listed in 1781. The compact size of the Messier AR-152S combines outstanding tranportability, high light gathering power and low weight for a telescope of this aperture. The special four lens construction delivers a better perfomance than a classical two lens achromat of this focal length. This telescope is only an optical tube without mount and tripod.FEATURESOptical design: refractor telescopeLens diameter: 152 mm / focal length: 760 mm / F/5Maximum recommended magnification: 254xTelescope for night and solar observationHigh quality BRESSER refractor opticsUniversal telescope for planets, double stars, planetary nebulae and deep-skyExcellent focuser with 2,5" (65 mm) open diameterFour lens construction8x50 straight through viewfinder reticleoptimized finder socket for comfortable useCradle rings with handle and integrated piggyback camera holder (1/4 thread)Smartphone camera adapter for sky navigation includedUniversal 44 mm Dovetail plate with stainless steel rail (fits LXD75/Great Polaris/EQ5)50,8 mm (2") to 31,7 mm (1,25") adapter with integrated T2 thread (T2-adapter ring for your camera is needed)Backfocus: 150 mm behind Hexafoc with attached 2" eyepiece adapterCollimatable lens cellSCOPE OF DELIVERYOptical Tubeaperture solar-filter26 mm Super Plössl eyepiece (31.7 mm / 1.25")31,7 mm (1.25") diagonal mirrorintegrated 31.7 mm and T2 adaptertube rings with universal 44 mm Dovetail plate with stainless steel rail (fits LXD75/Great Polaris/EQ5)handle with camera holderSmartphone adapter for celestial navigation 8x50 Viewfinderastronomy PC software Stellariumrotatable star map
€799.00*
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