EXPLORE SCIENTIFIC 2" Variable Polarizing Filter

2" variable polarizing filter

  • variable polarizing filter
  • individually adjustable image brightness
  • made from high-quality optical glass
  • black anodized aluminium housing
  • 2" filter thread on both sides
  • protective box included

€57.00*

% €79.00* (27.85% saved)

Available, delivery time: 1-3 days

Product number: 0310250
GTIN/EAN: 4007922041025
Product information "EXPLORE SCIENTIFIC 2" Variable Polarizing Filter"
Universally usable variable polarizing filter with a  2" filter thread.
This variable polarizing filter allows for a continuous adjustment of the image brightness. This is very helpful to level strong differences in contrast of different observation objects individually. Particularly for lunar and planetary observations but also for solar observations this filter prevents an outshining of details.

Solar observations ONLY together with an adequate solar filter !!! 

Particularly when a Herschel wedge is used and with large objective lens apertures the use of the variable polarizing filter can reduce the brightness of the observation object to a confortable level.
The large adjustment range of 40% to 1% light transmission and the neutral grey filter effect create a comfortable and unadulterated image.
The handling is very simple. The desired filtering level is set by turning the two sides of the housing against each other.
A 2.0" filter thread on both sides (female/male) allow for the simultaneous use of additional colour filters.

FEATURES
  • variable polarizing filter
  • individually adjustable image brightness
  • made from high-quality optical glass
  • black anodized aluminium housing
  • 2.0" filter thread on both sides
SCOPE OF DELIVERY
  • polarizing filter
  • protective box
Colour: black
Field of application [Telescope-filter]: Filter for Moon and Planets
Material: Aluminium
Telescope filter type: Nebula filter

Similar products

NATIONAL GEOGRAPHIC 114/900 Reflector Telescope AZ
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

€159.90*
LUNT Solar Eclipse Glasses (5 pieces)
Observe solar eclipses, sunspots, and airplane flybys in front of the sun safely with these glasses designed for direct solar observation.Manufactured to the same standards of safety typical to the entire family of Lunt Solar Systems products - the premium manufacturer of Solar telescopes and filters.FEATURESproduces a very natural light-yellow sun imageideal for safe visual observation of the sunvery resistant to damage100% safeSCOPE OF DELIVERYSolar eclipse glasses (5 pieces)

€16.90*
LUNT Solar Eclipse Glasses (1 piece)
Observe solar eclipses, sunspots, and airplane flybys in front of the sun safely with these glasses designed for direct solar observation.Manufactured to the same standards of safety typical to the entire family of Lunt Solar Systems products - the premium manufacturer of Solar telescopes and filters. FEATURESproduces a very natural light-yellow sun imageideal for safe visual observation of the sun very resistant to damage 100% safe SCOPE OF DELIVERYSolar eclipse glasses (1 piece)

€5.90*
%
BRESSER First Light AR-102/1000
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

€359.19* €399.00* (9.98% saved)
%
BRESSER BR-LP15 Cleaning kit - 3 parts
With the 3-piece lens cleaning set you not only clean camera or binocular lenses, but also spectacles glasses and displays and screens of smartphones, laptops, tablets, etc. thoroughly and safely. When cleaning high quality optical lenses, you have to be very careful. After all, it would be very annoying to successfully remove the dust but leave a scratch behind. With the lens cleaning pen you can safely clean optical and coated glass. With the brush on one side you can remove coarser dirt before polishing the lenses with the other side. Just blow away fluff with the bellows. FEATURES complete set for safe cleaning of camera lenses bellows for removing coarse dirt particles and fluff without scratching the lens lint-free microfibre cloth approx. 14,5x14,5cm lens cleaning pencil for safe cleaning of optical and coated glass SCOPE OF DELIVERY 1x bellows 1x lens cleaning pen 1x microfiber cloth

€4.50* €4.95* (9.09% saved)
%
BRESSER Special Saturn 20x60 Binoculars
The BRESSER Special-Saturn 20x60 binoculars offer an exceptional combination of high magnifications with large objective lenses. The extremely high 'light gathering capacity' makes it perfect for astronomers and nature observers. A tripod thread has been built into each Saturn binocular to facilitate the attachment of a tripod, with the use of the included tripod adapter. This allows for a stable image. FEATURESprisms and lenses made of BaK-4 glass materialoptical surfaces are green multi coated with 95% light transmissionhigh brightnessfoldable eyecupscentre-wheel focusingtripod adapter threadrobust, rubber armoured binocular bodySCOPE OF DELIVERYbinocularsnylon bagcarrying straptripod adapterprotective lens capsprotective eyepiece caps

€119.99* €129.90* (7.63% saved)
BRESSER Classic 60/900 AZ Refractor Telescope
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

€119.00*
EXPLORE SCIENTIFIC 82° Ar Eyepiece 11mm (1,25")
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.

€179.00*
%
BRESSER Computer Cable for Remote Control of MCX Goto Telescopes and EXOS-II EQ Goto Mounts
For remote control of a BRESSER MCX 102/127 Goto Telescope or a BRESSER EXOS-II EQ Goto Mount via computer cable. Navigate your telescope comfortably with navigation software and Windows 10 computer. One click on the star map on the computer and the telescope is positioned on the desired object. NOTES(This list is exemplary and not exhaustive)To control a BRESSER MCX Goto telescope, no software update of the Computer Handbox is required. A direct use is therefore possible. To control a BRESSER EXOS-II EQ Goto mount, the Computer Handbox must be updated to software version v2.3 with the help of this computer cable set. This cable set is not suitable for the EXPLORE SCIENTIFIC EXOS-2 with PMC-Eight Goto. This set does not include navigation software and computer. DOWNLOAD NAVIGATION SOFTWARE (alternatively)Sky Map Pro Demo: https://nextcloud.bresser.de/s/PnQr9gyigxp9A6zSky Map Pro ASCOM PLUG-in: http://download.ascom-standards.org/plugins/SkyMapProPlugin.zip Carte Du Ciel: https://www.ap-i.net/skychart//en/startStellarium: https://stellarium.org/de FEATURESConnects a BRESSER MCX102/127 Goto to a PC Connects a BRESSER EXOS-II Goto to a PC Comfortable control by computer USB to serial adapter included Required firmware update for EXOS-II included Compatible with WIN 10 + 11SCOPE OF DELIVERYRS-232 computer cable USB 2.0 to RS-232 adapter + driver CD-Rom Firmware v2.3 for EXOS-II Goto Handbox Flash Utility Software for Handbox Update ASCOM driver for BRESSER MCX/EXOS-II Goto Operating instructions

€40.50* €45.00* (10% saved)
%
BRESSER Spica Plus 130/1000 EQ reflector telescope incl. accessories set
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

€199.00* €359.00* (44.57% saved)
BRESSER Arcturus 60/700 AZ - Refractor Telescope with Smartphone Adapter & Solar Filter
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

€119.00*
%
BRESSER JUNIOR Refractor Telescope 70/900 EL
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

€104.99* €119.90* (12.44% saved)

Customers also bought

EXPLORE SCIENTIFIC 52° LER Eyepiece 3mm Ar
A new focal length joins the Explore Scientific line of inert gas-purged Waterproof Eyepieces with the 3mm 52° LER Series Eyepiece. A logical companion for the grab-and-go ED APO 80mm f/6 Air-Spaced Triplet, this eyepiece produces 160X which will perform very well with good seeing conditions on planetary objects, and to split double stars. On the ED APO 152 at f/8, 405X is achieved without the use of a Focal Extender or Barlow for those nights of near perfect seeing, with a very comfortable 15mm of eye relief. Comfort, Quality, Value. The Explore Scientific 52° LER Series Most short focal length eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossl.  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 patented 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.SPECIFICATIONSLarge eye distance, large field and great image sharpnessExcellent viewing position for people with glassesExcellent field sharpness even with fast optics52° apparent field of viewArgon-purging prevents internal fogging, the sealing facilitates cleaningPatented EMD-coating to maximize contrastBlackened lens edges to avoid reflexesAll eyepieces of this series are parfocalStainless steel barrel with conical security cutoffDust covers and protective bag includedSCOPE OF DELIVERY52° EyepieceDust coversProtective bag

€89.00*
%
EXPLORE SCIENTIFIC 2" H-Alpha Nebula Filter 7nm
Apart from air turbulence, the brightening of the night sky is the greatest barrier to observing faint objects beyond the solar system. Due to streetlamps and other artificial lighting the sky in urban areas is no longer properly black. As a result, the contrast and thus the perception of deep-sky objects also suffer. However, depending on the type of celestial object, it is possible to filter out some of the interfering light, making it easier to photograph the objects.The EXPLORE SCIENTIFIC H-Alpha filter uses the characteristic of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case the red glowing hydrogen. This filter blocks all other colors (and therefore almost all artificial light) and lets only the emission lines of hydrogen through. Especially the interfering light of mercury and sodium vapor lamps is effectively blocked. The effect is amazing: Suddenly, nebulae become visible on photos in locations which appear completely empty without the filter.The EXPLORE SCIENTIFIC H-Alpha Nebula Filter has been developed exclusively for astrophotography. Especially in heavy light-polluted skies many emission nebulae only become visible and are shown in full expanse on astrophotos when using this filter. The H-Alpha nebula filters make astrophotography near the city possible and the use leads to amazingly good image results despite the existing light pollution. A must for every urban astrophotographer.The EXPLORE SCIENTIFIC nebula filters are delivered with an individual test report - so you can be sure to get high quality filters.This filter's narrow passband of only 7 nm bandwidth works out the faint emission nebulae or makes them visible even under difficult urban conditions. FEATURESH-Alpha filters are used for astrophotography exclusively Allows photography of emission nebulae that glow in the light of red hydrogenMany of these emission nebulae are only visible in their full expansion in photos taken with this filterBlocks almost all artificial light, especially from mercury and sodium vapor lampsOnly allows the emission line of red hydrogen to pass throughNarrow band version for difficult urban conditionsTransmission bandwidth: 7 nmAllows more contrast and detail for all urban astrophotographersIdeal for use near cities, in heavy brightened skiesIndividual test certificate included to guarantee you receive a premium filterSCOPE OF DELIVERY1x 2'' H-Alpha Nebula Filter

€115.00* €229.00* (49.78% saved)
EXPLORE SCIENTIFIC 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 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

€119.00*
EXPLORE SCIENTIFIC Teleextender 3x 50,8mm/2"
With teleextenders it is possible to extend the effective focal length of a telescope system, resulting in higher magnification for the observation of the moon, the planets or small Deep-Sky objects with the same eyepieces. So you can use the advantages of eyepieces with longer focal length - such as the bigger eye distance and the more relaxed observing comfort - at high magnifications also.These teleextenders incorporate a telecentric optical design that deliveres a excellent image sharpness over the whole field of view and are premium choices for visual observations and astrophotography. The combination of excellent fully multicoating with superior optical design makes the Focal Extenders superior to classic Barlow lenses.FEATURESSuitable for visual observations and astrophotographyTriples the effective total focal length of the telescopeFour lens telecentric designFully multicoatedFilter thread for color or nebula filtersSCOPE OF DELIVERY Fokal Extender 3 x Adapter 2" (50,8mm) auf 1,25" (31,7mm)

€219.00*
%
EXPLORE SCIENTIFIC 2" S-II Nebula Filter 6.5nm
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lighting, 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 celestial object, it is possible to increase the contrast dramatically by blocking the interfering artificial light. The EXPLORE SCIENTIFIC S-II filter uses the property of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case ionized sulfur. The EXPLORE SCIENTIFIC S-II nebula filter blocks all other colors (and thus almost all artificial light) and lets only the emission lines of ionized sulfur at 672 nm through. The effect is amazing: suddenly, nebulae become visible in places that appear completely empty without the filter. In slightly brightened skies, many planetary nebulae, emission nebulae and supernova remnants can be seen without any difficulties when using this filter. A must for every visual observer and for astrophotography. EXPLORE SCIENTIFIC nebula filters come with an individual test report - so you can be sure to get high quality filters. FEATURES Simplifies the observation of planetary nebulae, emission nebulae and supernova remnants Blocks almost all artificial light Only lets the emission lines of ionized sulfur at 672 nm pass Transmission bandwidth: 6.5 nm Allows for more contrast in faint deep sky objects ideal for use near cities, in heavy brightened skies individual test certificate included to guarantee you receive a premium filter SCOPE OF DELIVERY 1x 2'' S-II nebula filter

€115.00* €229.00* (49.78% saved)
%
BRESSER Camera Adapter 1.25/2" with T2
Adapter 2" with brass locking ring for 1,25" eyepieces. The integrated T2 thread adapts DSLR or astro-cameras (*appropriate T2 ring for your camera model needed). On the telescope side there is a 2" filter thread M48x0.75, which allows the easy use of colour and nebula filters.SCOPE OF DELIVERYCamera Adapter 

€20.00* €39.00* (48.72% saved)

Customers also viewed

%
EXPLORE SCIENTIFIC 2" S-II Nebula Filter 6.5nm
One of the most important obstacles for the exploration of the night sky is the brightening of the night sky by artificial lighting, 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 celestial object, it is possible to increase the contrast dramatically by blocking the interfering artificial light. The EXPLORE SCIENTIFIC S-II filter uses the property of the so-called emission nebulae. These objects glow in certain colors, the so-called emission lines. The emission lines are associated with certain chemical elements - in this case ionized sulfur. The EXPLORE SCIENTIFIC S-II nebula filter blocks all other colors (and thus almost all artificial light) and lets only the emission lines of ionized sulfur at 672 nm through. The effect is amazing: suddenly, nebulae become visible in places that appear completely empty without the filter. In slightly brightened skies, many planetary nebulae, emission nebulae and supernova remnants can be seen without any difficulties when using this filter. A must for every visual observer and for astrophotography. EXPLORE SCIENTIFIC nebula filters come with an individual test report - so you can be sure to get high quality filters. FEATURES Simplifies the observation of planetary nebulae, emission nebulae and supernova remnants Blocks almost all artificial light Only lets the emission lines of ionized sulfur at 672 nm pass Transmission bandwidth: 6.5 nm Allows for more contrast in faint deep sky objects ideal for use near cities, in heavy brightened skies individual test certificate included to guarantee you receive a premium filter SCOPE OF DELIVERY 1x 2'' S-II nebula filter

€115.00* €229.00* (49.78% saved)
%
EXPLORE SCIENTIFIC 2" CLS Nebula 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

€57.00* €83.00* (31.33% saved)
%
EXPLORE SCIENTIFIC Filter Set 2 Moon & Planets from 100mm (4")
Filter Set 2 is recommended for Moon & Planets from 100mm (4") Aperture Set 2 includes the following filters: Explore Scientific Filter 1.25" Green No.56 - 0310262 The green filter is to increase the contrasts enormously between the red and the blue regions of the cloud structures on the gas planets Jupiter and Saturn. Seeing our Earth Moon through the green filter, the contrasts of each ray crater become clearly more visible. 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" Yellow No.12 - 0310267 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" 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. 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 protection-case

€23.00* €45.00* (48.89% saved)
EXPLORE SCIENTIFIC Teleextender 3x 50,8mm/2"
With teleextenders it is possible to extend the effective focal length of a telescope system, resulting in higher magnification for the observation of the moon, the planets or small Deep-Sky objects with the same eyepieces. So you can use the advantages of eyepieces with longer focal length - such as the bigger eye distance and the more relaxed observing comfort - at high magnifications also.These teleextenders incorporate a telecentric optical design that deliveres a excellent image sharpness over the whole field of view and are premium choices for visual observations and astrophotography. The combination of excellent fully multicoating with superior optical design makes the Focal Extenders superior to classic Barlow lenses.FEATURESSuitable for visual observations and astrophotographyTriples the effective total focal length of the telescopeFour lens telecentric designFully multicoatedFilter thread for color or nebula filtersSCOPE OF DELIVERY Fokal Extender 3 x Adapter 2" (50,8mm) auf 1,25" (31,7mm)

€219.00*