LUNT Blue-Glass 20mm for B400 to B1800 blocking-filters

Spare part for Pressure-Tuner of MT and THa series H-alpha solar telescopes from LUNT SOLAR SYSTEMSTwo rubber O-rings are installed into the Pressure-Tuner of Lunt Solar Systems solar telescopes to seal the air-pressure tuning system. Over time, the rubber of this O-rings can age and become porous, whereby the air-pressure can then no longer be maintained. When this happens, a old O-ring can be replaced by this spare part. The replacement is simple and can be done by the user. Installation instructions can be found here under the tab "Manuals" as a PDF file for download.Please be sure to note:Depending on the production series, the diameters of the Pressure-Tuner pistons can vary slightly. There are pistons for O-rings with 32mm inner diameter and 40mm outer diameter, and pistons for O-rings with 34mm inner diameter and 42mm outer diameter. Please check the diameter of your old O-rings, this spare part is an O-ring with 34mm inner diameter and 42mm outer diameter.If you need the smaller O-ring with 32mm inner diameter and 40mm outer diameter, this is the spare part with item number 0558330.The LS50THa telescopes have Pressure-Tuners with smaller diameters, for these you will need replacement O-rings with item number 0558320.After replacing a O-ring, the piston and cylinder of the Pressure-Tuner can be re-greased with grease available under item number 0558350.FEATURESInner diameter: 34mmOuter diameter: 42mmCannot be used separately, only as a replacement part on the Pressure-Tuner of MT and THa telescopes from Lunt Solar Systems.It does not matter what blocking-filter is at the MT or THa telescope.SCOPE OF DELIVERYSpare part one O-ring with 34mm inner diameter and 42mm outer diameter for Pressure-Tuner of MT and THa H-alpha solar telescopes from Lunt Solar Systems

Spare part for Pressure-Tuner of MT and THa series H-alpha solar telescopes from LUNT SOLAR SYSTEMSFor example, if the O-rings have been changed on a Pressure-Tuner of a Lunt Solar Systems H-alpha solar telescope, the Pressure-Tuner can be re-greased with this grease. The grease can be applied to the piston with the O-rings and to the threads of the brass cylinder on the Pressure-Tuner. It keeps the Pressure-Tuner running smoothly and seals it.Please note:Do not use too much grease inside the brass cylinder. The grease must not get into the air passage at the bottom of the brass cylinder, otherwise the Etalon could be damaged in the worst case.FEATURESLithium grease with Teflon contentVery good sealing propertiesHigh adhesion and good corrosion protectionTemperature stable from -20 to +120° CelsiusConstant viscosity during temperature fluctuationsSCOPE OF DELIVERYSpare part: Grease for Pressure-Tuner of MT and THa H-alpha solar telescopes from Lunt Solar Systems

​Spare part for Pressure-Tuner of LS50THa H-alpha solar telescopes from LUNT SOLAR SYSTEMSA rubber O-ring is installed into the Pressure-Tuner of Lunt Solar Systems LS50THa solar telescopes to seal the air-pressure tuning system. Over time, the rubber of this O-ring can age and become porous, whereby the air-pressure can then no longer be maintained. When this happens, the old O-ring can be replaced by this spare part. The replacement is simple and can be done by the user. Installation instructions can be found here under the tab "Manuals" as a PDF for download.After replacing the O-ring, the piston and cylinder of the Pressure-Tuner can be re-greased with grease available under part number 0558350.Please note that this spare part can only be used on the Lunt Solar Systems LS50THa H-alpha solar telescopes. If the problem occurs on the larger THa or MT series telescopes, the larger O-rings with part numbers 0558330 or 0558340 must be used there.FEATURESInner-diameter: 31mmOuter-diameter: 39mmCannot be used separately, only as a replacement part on the Pressure-Tuner of the LS50THa telescopes from Lunt Solar Systems.It does not matter what blocking filter is at the LS50THaSCOPE OF DELIVERYSpare part one O-ring for pressure tuner of LS50THa

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)

Spare part for Pressure-Tuner of MT and THa series H-alpha solar telescopes from LUNT SOLAR SYSTEMSTwo rubber O-rings are installed into the Pressure-Tuner of Lunt Solar Systems solar telescopes to seal the air-pressure tuning system. Over time, the rubber of this O-rings can age and become porous, whereby the air-pressure can then no longer be maintained. When this happens, a old O-ring can be replaced by this spare part. The replacement is simple and can be done by the user. Installation instructions can be found here under the tab "Manuals" as a PDF file for download.Please be sure to note:Depending on the production series, the diameters of the Pressure-Tuner pistons can vary slightly. There are pistons for O-rings with 32mm inner diameter and 40mm outer diameter, and pistons for O-rings with 34mm inner diameter and 42mm outer diameter. Please check the diameter of your old O-rings, this spare part is an O-ring with 32mm inner diameter and 40mm outer diameter.If you need the larger O-ring with 34mm inner diameter and 42mm outer diameter, this is the spare part with item number 0558340.The LS50THa telescopes have Pressure-Tuners with smaller diameters, for these you will need replacement O-rings with item number 0558320.After replacing a O-ring, the piston and cylinder of the Pressure-Tuner can be re-greased with grease available under item number 0558350.FEATURESInner diameter: 32mmOuter diameter: 40mmCannot be used separately, only as a replacement part on the Pressure-Tuner of MT and THa telescopes from Lunt Solar Systems.It does not matter what blocking-filter is at the MT or THa telescope.SCOPE OF DELIVERYSpare part one O-ring with 32mm inner diameter and 40mm outer diameter for Pressure-Tuner of MT and THa H-alpha solar telescopes from Lunt Solar Systems

Double-stack filter for LS40THa telescopes. The bandwidth of H-alpha systems can be reduced by so-called "double-stacking". A smaller bandwidth provides much more contrast at the solar surface, thereby many more details will become visible. Double-stacking with a bandwidth of only <0.55 Angstrom is also possible at the LS40THa telescopes. Therefore Lunt Solar Systems has especially designed this LS40FHa double-stack filter in compact housing. FEATURES Aperture: 40 mm Bandwidth: <0.55 Angstrom Tuning: mechanical tilt-tuning Housing diameter: 70mm Length: 60mm Weight: 0,3kg only usable together with a LS40THa telescope! SCOPE OF DELIVERY LS40THa H-alpha double-stack filter Instruction manual

Object plate out of glass, compatible with BRESSER Researcher ICD​ and Analyth STR microscopes

Adapter T2 to 2", takes for example 2" eyepieces to Lunt Solar Systems blocking-filters.This adapter offers a T2 female thread at the telescope-side, and a 2" connection at the eyepiece-side.For example you want to use your 2" eyepieces at Lunt Solar Systems telescopes or filters? All you need is this adapter. Simply remove the 1.25" eyepiece tube from your blocking-filter, and thread on this 2" adapter. It takes T2 threading to a 2" eyepiece tube.You can use 2" eyepieces with this adapter at:• LUNT H-alpha telescopes (not at LS35THa!)• the blocking-filters of LUNT H-alpha filter systems• LUNT Ca-K modules• all telescopes/adapter with T2 male threadTechnical data:• Thread at telescope-side: T2 female thread• Eyepiece connection: 2"Delivered by order:• Adapter T2 to 2"(Blocking Filter not included)

Filter Set 3 is recommended for Moon & Planets from 150mm (6") Aperture Set 3 includes the following filters: Explore Scientific Filter 1.25" Light Blue No.82A - 0310265 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 Filter 1.25" Violet No.47 - 0310272 The purple filter is perfect for watching Venus. Seeing through it, the dark clouds of the Venus atmosphere become even better visible. He also clears up the structures of the rings around Saturn. Using big openings and having a clear sight this filter is also good for watching Merkur. Explore Scientific Filter 1.25" Light Red No.23A - 0310271 The blue/blue green light is totally blocked. The contrast between the card and the lighter zones will enormously increase. This is truly helpful when you watch Jupiter or Saturn. Or for mars, watching the poles. Explore Scientific Filter 1.25" Yellow-Green No.11 - 0310269 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. 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

Take pictures with your smartphone through the telescope or microskope? With the Smartphone camera adapter this is now child's play! Simply screw the adapter to the eyepiece and use your smartphone as a camera with a super-telephoto / super-macrophoto lens. It lets you take pictures of distant objects or very small objects as if you were very close.The Deluxe version offers an even more comfortable and secure attachment to the eyepiece. By a rotary movement of the clamping ring 3 clamping jaws are evenly applied to the eyepiece housing and the Smartphone adapter sits firmly and centrically on the eyepiece. The fine adjustment of the height of the smartphone support allows a quick and precise adjustment of the viewing height of the smartphone camera above the eyepiece lens. Good image results are thus guaranteed.  FEATURES Take photos through the telescope Smartphone camera with super telephoto lens Fine Height adjustment of phone support Wide adjustment range for eyepiece housing diameter Fits 31.7mm (1.25") eyepieces For eyepiece housing diameters from 22-38mm SCOPE OF DELIVERY Smartphone holder deluxeLocking ring for the smartphone

Simply set up and explore the Moon, Venus and co. straight away: With the BRESSER Stellar 60/800 AZ lens telescope, getting started in sky observation is quick and easy. The complete set already contains the necessary equipment for your new hobby: the astronomical lens telescope with 60 mm aperture and 800 mm focal length, the azimuthal mount, the tripod and extensive accessories for your voyage of discovery through the solar system. The beginner's telescope is very easy to use and therefore ideal for getting children excited about astronomy. Well-tried classic for completely new impressions - the telescope Especially for beginners and children, this classic lens telescope - also known as an achromatic refractor of the Fraunhofer type - makes it easy to enjoy astronomical sights. The modern, precisely coated optics ensure good imaging properties. Another strength of the optics: the 60 mm aperture and the 800 mm focal length result in a very large focal ratio (ratio of the aperture to the focal length) of about 1 to 13.3 (F/13.3). The result: a very sharp image with good contrast. The long focal length also makes the telescope a specialist for lunar, solar and planetary observation. However, open star clusters and globular clusters are also guaranteed to amaze you when you look through the telescope. And how big do the celestial objects appear? With the aperture size, the starter telescope achieves a resolving power which lets you enjoy really sharp images at up to 120x magnification. Technically, this entry-level telescope is capable of more - theoretically up to 600x with the included accessories. But: with increasing magnification, the image sharpness can slowly decrease. Of course, not only the telescope plays a role when it comes to magnification. The air turbulence in the atmosphere (seeing conditions) also affects your view of the night sky. The foundation for your view into space - mount and tripod The telescope tube is held securely on the height-adjustable aluminium tripod with azimuthal mount. And this azimuthal mount has a great advantage: it is very easy to operate. Just like a common photo tripod, you simply swing the telescope manually to the left and right, up and down. Perfect for beginners in astronomy and children. But where to put the accessories? To keep them within easy reach, just place eyepieces, solar filter etc. on the storage plate between the tripod legs. All you need for a quick start in astronomy - the accessories For your fascinating view of the night sky, the telescope for beginners comes with lots of accessories. Among them you will find a LED-viewfinder, with which you can easily keep track of the sky. It is mounted parallel to the actual telescope and projects a red dot onto a small screen. When you look through the viewfinder, the red dot appears to float in front of the sky - right where your starter telescope aperture is pointing. This way, the finder helps you to align your optics precisely and locate celestial objects - before you then take a closer look through the magnification of the telescope. You determine how much magnification you get by choosing the eyepiece. You will see: The two eyepieces (4 mm, 20 mm) included in the set alone offer quite different perspectives on the beauties of our cosmos. For the most versatile views possible, the socket diameter of 1.25 inch (31.7 mm) also complies with an international, manufacturer-independent standard. So if you want to expand your astronomy set later, you will have a wide choice of models. You have found an astronomical highlight and want to see even more details? Then place the 3x Barlow-lens between the telescope and the eyepiece. It will triple the magnification. Meanwhile the included 90-degree star diagonal mirror lets you comfortably admire the night sky. Even though your entry-level telescope is pointed upwards, you don't have to lie down underneath to enjoy the view. Instead, you look in comfortably from the side. But it is not only at night that we can observe the beauty of outer space. During the day, our own Sun is the undisputed star in the sky. So attach the solar filter to the aperture of your beginner’s telescope and safely observe sunspots and granulation. CAUTION: Never point the telescope at the Sun without the solar filter! To capture and share your unforgettable moments in astronomy, take your very own snapshots with the smartphone adapter. Thus the very first step towards astrophotography is easily taken! Look forward to your complete astronomical starter package and a whole new view of the Sun, Moon and planets - with the BRESSER Stellar 60/800 AZ lens telescope. FEATURES Beginner’s telescope for astronomy 60 mm aperture and 800 mm focal length Achromatic refractor type Fraunhofer Ideal for observing the Sun, Moon and planets  Height-adjustable tripod with azimuthal mount Easy to use, therefore suitable for children Focal ratio F/13.3, 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 sockets) Barlow-lens 3x (1.25 inch sleeve) Star diagonal mirror LED red dot finder Solar filter Smartphone camera adapter Accessory tray Astronomy software via download Instruction manual