{"title":"Eyepiece Filters \u0026 Accessories","description":"","products":[{"product_id":"celestron-94243-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron EclipSmart Solar Filter for 6-Inch Schmidt-Cassegrain Telescopes","description":"\u003cp\u003eEnhance your viewing experience with Celestron's EclipSmart Solar Filter for Celestron 6-inch telescopes. With two hook-and-loop straps and four self-adhesive pads for added safety, you can be assured that the solar filter cannot be accidentally knocked off and will provide Solar Safe, ISO compliant viewing.\u003c\/p\u003e\u003ch3\u003eSolar Safe Technology\u003c\/h3\u003e\u003cp\u003eEclipSmart solar products feature Solar Safe filter technology providing the ultimate protection from harmful solar radiation, including both IR and UV light, and filters 99.999% of visible light. Celestron Solar Safe filter technology is safe for direct solar observation and has been independently tested by SAI Global Assurance Services.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42160392470576,"sku":"94243-CELESTRON","price":59.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/2040367.jpg?v=1751947185"},{"product_id":"celestron-94244-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron EclipSmart 8\" Solar Filter (SCT and EdgeHD)","description":"\u003cp\u003eThis EclipSmart Solar Filter from Celestron allows you to transform standard Celestron 8 inch Schmidt-Cassegrain and EdgeHD telescopes into a white-light solar telescope for safe viewing of eclipses and other solar events.\u003c\/p\u003e\u003cp\u003eThis filter is designed to fit on your telescope like a lens cap using two hook-and-loop fasteing safety straps and four self-adhesive hook-and-loop pads. These straps and pads safely secure the EclipSmart filter in place and create a snug fit.\u003c\/p\u003e\u003cp\u003eThis Mylar filter has a large 176mm aperture to ensure an unobstructed view of the sky. It’s also ISO-compliant and protects your eyes against solar radiation, IR and UV light for a safe viewing experience.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42160393224240,"sku":"94244-CELESTRON","price":74.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/2040312.jpg?v=1751947304"},{"product_id":"celestron-93527-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron 2\" Mirror Diagonal with XLT Coatings for SCT Telescope","description":"\u003cp\u003eThere are few telescope accessories that work as hard or matter as much as a diagonal! An integral part of the optical chain, a good diagonal can make a big difference in the quality of the image you see. A 2 inch diagonal is required if you want to use 2 inch eyepieces when observing with your telescope. The larger 2 inch barrel allows you to see a bigger percentage of the telescope’s light cone, which works wonders for capturing faint deep sky objects with low surface brightness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHigh Quality\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Celestron 2” Mirror Diagonal was built for superior performance. The housing is machined with precision instruments to make sure the optics stay perfectly aligned. The diagonal’s mirror is tested with an interferometer, and is guaranteed to be 1\/10 wave or better. The mirror’s surface is covered with the same high performance XLT coatings used on Celestron’s best telescopes, and the result is a sharp, bright image that will satisfy the most discriminating amateur astronomer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis 2” diagonal threads securely to the rear cell of standard Schmidt-Cassegrain telescopes. To take advantage of the XLT Diagonal’s extra light throughput, insert a 2” eyepiece into the barrel. If you want to use 1.25” eyepieces, slide the included 2” to 1.25” adapter into the eyepiece barrel and secure it with the thumbscrew. When you’re not observing, store your diagonal in the included aluminum case for protection.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42167113056304,"sku":"93527","price":169.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3227730.jpg?v=1752160157"},{"product_id":"celestron-93571-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron Dielectric Star Diagonal with Twist-Lock (1.25-Inch)","description":"\u003cp\u003eEnsure maximum light transmission without loss of optical quality with the Celestron Dielectric Star Diagonal, 1.25-inch with Twist-Lock. Upgrade your existing star diagonal to this premium one and enjoy brighter, sharper images without replacing your telescope. This star diagonal reflects the telescope’s light path 90° to provide a more comfortable viewing angle. In addition, the glass has 58 layers of dielectric coatings, which provide an over 99% reflective surface, delivering the maximum amount of light to the eyepiece.\u003c\/p\u003e\u003ch3\u003eTwist-Lock Features\u003c\/h3\u003e\u003cp\u003eThe twist-lock eyepiece holder secures any 1.25-inch eyepieces while keeping them centered in the diagonal, thus providing best opto-mechanical alignment between the telescope and eyepiece. Unlike traditional thumb screws, the twist-lock cannot scratch or engrave the barrel of your eyepieces. The twist-lock has an integrated 1.25-inch barrel stop that prevents 1.25-inch accessories with long barrels from damaging the mirror. All the diagonal’s mechanical parts are made of machined black anodized aluminum, except the twist lock rings, which are orange anodized for visibility. The interior of the barrel is glare threaded and painted flat black to prevent glare. With all its features and these high-end finishes, the Celestron Dielectric Star Diagonal, 1.25-inch with Twist-Lock is one of the highest quality 1.25-inch star diagonals that Celestron has ever offered.\u003c\/p\u003e\u003ch3\u003eDielectric Star Diagonal Advantages\u003c\/h3\u003e\u003cp\u003eThe key specifications for a star diagonal are its reflectivity and its optical quality. This diagonal delivers top performance in both categories, with an over 99% reflective mirror and diffraction-limited optical quality. This ensures that virtually all the light collected by the telescope will reach the eyepiece without the diagonal affecting optical performance. Using a lower quality star diagonal can both dim the view and degrade optical quality. You can enjoy better views from your telescope by simply swapping out its diagonal for a premium one, like the Celestron Dielectric Star Diagonal.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42167113089072,"sku":"93571-CELESTRON","price":149.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3227745.jpg?v=1752160184"},{"product_id":"celestron-93617-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron Light Pollution Imaging Filter for Rowe-Ackermann Schmidt Astrograph 11 Telescope","description":"\u003cp\u003eGet the most out of your Celestron Rowe-Ackermann Schmidt Astrograph (RASA) 11 Telescope, even under light-polluted skies, with this Light Pollution Imaging Filter, custom-designed for the RASA. No matter which camera you use, this filter’s generous 68mm clear aperture allows it to easily accommodate today’s largest sensors. Utilizing a machined aluminum housing and Schott B270 glass, the filter replaces the RASA’s clear optical window so its optical performance is unaltered.\u003c\/p\u003e\u003ch3\u003eRemove Light Pollution While Keeping Your Images Bright\u003c\/h3\u003e\u003cp\u003eLight pollution limits how much of the night sky we can see and photograph. When imaging with a color camera in light polluted areas, skyglow degrades image quality. Light pollution filters help to selectively block light emitted from common streetlights and other ambient lighting. But most light pollution filters greatly compromise the total light throughput, causing dim images, and negatively impact the color balance, causing images to appear too green or blue.\u003c\/p\u003e\u003ch3\u003ePerfect for Imaging Colorful Nebulae and Galaxies\u003c\/h3\u003e\u003cp\u003eThe Light Pollution Imaging Filter surgically removes unwanted light pollution while preserving as much of the useful spectrum as possible. That means you’ll still retain over 90-percent of the light captured by your telescope at many wavelengths. Unlike other light pollution suppression filters, the Celestron LP Imaging Filter maintains a relatively neutral color balance so you can bring out subtle color in galaxies and other faint deep sky objects. Multiple layers of specially-formulated dielectric coatings provide the desired transmission, while anti-reflective coatings minimize star halos and internal reflections.\u003c\/p\u003e\u003ch3\u003eIndividually Tested for Quality\u003c\/h3\u003e\u003cp\u003eEvery Celestron Light Pollution Imaging Filter is tested individually for light transmission. Inside the box, you’ll receive a graph detailing the actual transmission spectrum for your specific filter. Also included is a clear plastic case to protect the filter when not in use.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42167121969200,"sku":"93617-CELESTRON","price":699.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/2619356.jpg?v=1752160266"},{"product_id":"celestron-93619-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron Narrowband H-Alpha\/H-Beta\/OIII Imaging Filter for 8-Inch RASA","description":"\u003cp\u003eBring out the best in your nebulae astroimages with the H-alpha H-beta OIII (Ha-Hb-OIII) Imaging Filter for the 8-inch RASA. This specialized filter allows high transmission of light from emission nebulae while blocking light pollution, helping to make your images pop with detail off the black sky background with superior contrast. Fortunately, many sources of light pollution have relatively discreet emission spectra; they emit primarily at specific wavelengths of light. By strategically blocking these 'bad' wavelengths, the filter essentially eliminates the effect of light pollution while letting the 'good' wavelengths of light associated with the emission nebula pass through to the camera. You’ll notice much higher contrast in your images immediately, even if imaging from your light-polluted backyard! And since the transmission at the key wavelengths is so high, the nebula will not be dimmed—only the background will be blacker.\u003c\/p\u003e\u003ch3\u003eNebula Hunting\u003c\/h3\u003e\u003cp\u003eThe H-Alpha\/H-Beta\/OIII Imaging Filter for the 8-inch RASA is perfect for imaging emission nebulae like the North America Nebula (NGC 7000), Lagoon Nebula (M8), Orion Nebula (M42), and the Carina Nebula (NGC 3372). The imaging filter transmits key H-Alpha\/H-Beta\/OIII wavelengths that produce high contrast for emission nebulae. The transmission spectrum for the Imaging Filter is 85% or greater at key wavelengths (486nm, 496nm\/501nm, 656nm) and less than 0.5% transmission elsewhere. The Imaging Filter for the 8-inch RASA is a narrowband filter that blocks much of the visible spectrum and only lets specific wavelengths through. Because of this, it will not work well on broadband emission objects, such as galaxies and star clusters. The Celestron Imaging Filter for the RASA 8 was custom engineered to work at F\/2, so none of the “good” light from the nebula is inadvertently blocked by the filter.\u003c\/p\u003e\u003ch3\u003eBody and Storage\u003c\/h3\u003e\u003cp\u003eThe filter is machined aluminum black anodized cell with knurled rim for easy grip during installation. An anti-reflection coating has been added to the filter to help suppress reflections on the glass. The filter fits directly into the internal filter mount in the RASA 8’s front lens cell, where the optical window normally mounts. By removing the clear window and replacing it with the filter, optical performance for the entire system is maintained. No other adapter is needed.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42167127474224,"sku":"93619-CELESTRON","price":229.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3227763.jpg?v=1752160293"},{"product_id":"celestron-93669-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron Nebula Schott B270 Glass Filter for Celestron Origin Intelligent Home Observatory","description":"\u003cdiv\u003eEnjoy the most dazzling views of nebulae with your Celestron Origin when you add this H-alpha H-beta OIII (Hα-Hβ-OIII) imaging filter. This specialized filter allows high throughput of light wavelengths in emission nebulae while blocking other wavelengths that could diminish image quality and detail. The result is bright, colorful nebulae images that ‘pop’ with detail against the black sky background. This filter’s surface is 100 percent optically flat and free from defects.\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003eHow It Works\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003eEmission nebulae primarily emit at discrete wavelengths of light - Hα at 656nm, Hβ at 486nm, and OIII at 496\/501nm. By strategically transmitting only these wavelengths of light and blocking the rest of the spectrum, the filter dramatically reduces the effect of light pollution. The ‘bad’ light is blocked while the ‘good’ light associated with emission nebulae passes through to Origin’s sensor. You’ll immediately notice much higher contrast in your images, especially from your light-polluted backyard. And since the transmission at the critical wavelengths is so high, the nebula will not be dimmed - only the background will be blacker. You’ll also notice some contrast improvement in images of nebulae from darker skies, as the filter serves well in blocking natural skyglow.\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003ePerfect Fit\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003eThe Nebula Filter is perfect for imaging emission nebulae like the North America Nebula (NGC 7000), Lagoon Nebula (M8), Orion Nebula (M42), the Carina Nebula (NGC 3372), and dozens more. The imaging filter offers maximum light transmission in the key Hα-Hβ-OIII wavelengths, producing high contrast for emission nebulae like these. The transmission spectrum for the Nebula Filter is 85 percent or greater at key wavelengths (486nm, 496nm or 501nm, 656nm) and less than 0.5 percent transmission elsewhere. As a narrowband filter, it blocks much of the visible spectrum and only lets these specific wavelengths through. Because of this, you should not use this filter while observing or imaging broadband emission objects, such as galaxies and star clusters. For those objects, you’ll achieve the best results by removing the nebula filter and reinstalling Origin’s clear optical window. Other similar imaging filters on the market have much narrower bandpasses at the critical Hα-Hβ-OIII wavelengths. Unfortunately, these filters block much of the incoming Hα-Hβ-OIII light for an f\/2.2 optical system like Origin’s 6-inch RASA. This is because a RASA brings light into the filter at a steeper angle, which causes a spectral shift. If you use filters not explicitly designed for use at f\/2.2, some of the light from the nebula will be blocked, resulting in a dimmer image. The Nebula Filter for Origin was custom-engineered to work at f\/2.2, so none of the ‘good’ light from the nebula is inadvertently blocked by the filter.\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-weight: bold;\"\u003eBody and Storage\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003eThe filter features a machined aluminum black anodized cell with a knurled rim for easy grip during installation. It has anti-reflection coatings to help suppress reflections on the glass. The filter fits directly into the filter drawer in the Celestron Origin’s front lens cell, where the optical window sits. Simply remove the clear window and replace it with the filter. Origin maintains its optical performance across the entire system with the filter installed. No other adapter is needed. Each filter comes with a foam-lined plastic storage case to safely store the filter or the optical window glass that came with your Celestron Origin when not in use. Celestron tests every Nebula Filter for Origin individually to verify its performance. Along with your filter, you will receive a spectral transmission graph showing the results of your filter’s test and verifying it performs as expected throughout the spectrum.\u003c\/div\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42167128686640,"sku":"93669-CELESTRON","price":219.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3342290.jpg?v=1752160321"},{"product_id":"celestron-94221-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron EclipSmart Solar Filter for 70mm Refractor Telescope","description":"\u003cp\u003eEnhance your viewing experience with Celestron's EclipSmart Solar Filter for the Powerseeker 70 EQ and AZ Telescopes. With three nylon safety screws to snugly fit the filter to your telescope, you can be assured that the filter stays secured and provides safe solar viewing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eFeatures\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003eInstantly transform your normal Powerseeker 70AZ or 70EQ telescope into a white-light solar telescope with the EclipSmart Solar Filter which is designed from the telescope’s lens cap for a snug, safe fit via 3 safety screws. The included safety cap protects the outer surface of the filter when not in use. The Solar film is produced in the USA by American Paper Optics, one of the suppliers recommended by NASA for safe solar viewing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eSolar Safe Technology\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cp\u003eEclipSmart solar products feature Solar Safe filter technology providing the ultimate protection from harmful solar radiation, including both IR and UV light, and filters 99.999% of intense visible light. Celestron Solar Safe filter technology is Guaranteed Safe for direct solar observation and has been independently tested by SAI Global Assurance Services.\u003c\/p\u003e\n\n\u003cp\u003eSolar Safe products conform to and meet the transmission requirements of ISO 12312-2, Filters for Direct Observation of the Sun, EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun and, AS\/NZS 1338.1:2012, Filters for Eye Protectors.\u003c\/p\u003e\n","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42169113509936,"sku":"94221-CELESTRON","price":26.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/2305762.jpg?v=1752202416"},{"product_id":"celestron-94315-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron Moon Filter Set (1.25-Inch)","description":"\u003cp\u003eThe moon filters enhance lunar viewing by cutting down on the Moon’s bright glare, improving contrast and making faint details easier to observe. This Moon Filter Set contains all the filters you will ever need to observe the Moon during its various phases. The set allows you to choose the best filter to use with different eyepiece and telescope combinations. Use the darkest filter with larger aperture telescopes and lower magnification eyepieces. Use the lighter filters with smaller telescopes and higher magnification eyepieces. This kit is essential for those looking to take the next step in exploring their telescope’s full lunar capability, or for seasoned lunar observers who use a variety of telescopes and eyepieces to observe the Moon.\u003c\/p\u003e\u003ch3\u003eNeutral Density Filters\u003c\/h3\u003e\u003cp\u003eThe kit includes three neutral density (ND) filters: ND96-0.9 13% T, ND96-0.6 25% T, and ND96-0.3 50% T. These filters dim the entire visual spectrum from 400-700nm equally. The ND96-0.9 filter transmits 13% of the incoming light, the ND96-0.6 transmits 25% and the ND96-0.3 transmits 50%. They do not impart any color to the Moon, but reduce lunar brightness. With several ND filters to choose from, you can find just the right level of light transmission for the Moon depending on its phase, the aperture of your telescope, and the magnification of your eyepiece. ND filters can also be used reduce the glare from Venus to better see its crescent phases, and to help dim bright daytime views when using a telescope terrestrially.\u003c\/p\u003e\u003ch3\u003eMoon and Sky Glow Filter\u003c\/h3\u003e\u003cp\u003eThe kit also has a moon and sky glow filter which selectively reduces light transmission at different wavelengths and greatly improves contrast for observing subtle lunar features. This filter imparts a very light purple color to the Moon. For those in light-polluted skies, the Moon \u0026amp; Sky Glow filter provides some contrast enhancement when viewing deep sky objects due to the filter blocking some wavelengths associated with common forms of light pollution, like low-pressure sodium (LPS) street lights. Here is the transmission graph for the moon and sky glow filter.\u003c\/p\u003e\u003ch3\u003eHousing\u003c\/h3\u003e\u003cp\u003eEach filter is housed in an aluminum cell, providing a rigid, durable frame for the filter glass. The filters thread onto Celestron 1.25-inch eyepieces and most other 1.25-inch eyepieces with a standard filter thread. The filters have threads on the top and bottom to stack with other filters for even lighter filtration options.\u003c\/p\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42169114427440,"sku":"94315","price":59.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/2533675.jpg?v=1752202516"},{"product_id":"vaonis-ac023-telescopes-astronomy-telescope-eyepieces-accessories","title":"Vaonis City Light Pollution Suppression Filter for Vespera Lens (Black Exterior)","description":"\u003cp\u003eThe Vaonis Light Pollution Suppression Filter allows you to improve the quality of your photos when observing in the city or suburbs. It attenuates the effects of light pollution and thus increases the contrast between the celestial object being photographed and the background sky. The broadband filter blocks Na (sodium) and Hg (mercury) wavelengths emitted mainly by urban night lighting or undesirable natural light (atmospheric oxygen radiation, etc.), while allowing the main wavelengths from celestial objects. The exterior of this filter comes in a premium Black finish.\u003c\/p\u003e\u003ch3\u003eAnti-Light Pollution Filter\u003c\/h3\u003e\u003cp\u003eThe anti-light pollution filter is particularly useful for improving the brightness of deep sky objects, nebulae, star clusters, galaxies, etc. It is especially effective on emission nebulae because of the filtered wavelengths. Designed specifically for the Vespera lens, it fits easily and discreetly into the optical arm. The lens ring that holds the CLS filter is equipped with an electronic card that allows Vespera to detect it. Some of the examples of emission nebulae are Bubble (NGC 7635), Crescent (NGC 6888), Eagle, Elephant’s Trunk (IC 1396), Flame (NGC 2024), Lagoon (M8), North America (NGC 7000), Omega (M17), Orion (M42), Pacman (NGC 281), Rosette (NGC 2237), Tarantula (NGC 2070), Thor’s Helmet (NGC 2359), Trifid (M20), and Tulip (Sh2-101).\u003c\/p\u003e\u003ch3\u003eInstruction of Use\u003c\/h3\u003e\u003cp\u003eRemove the standard Vespera lens ring and insert the light pollution filter until you hear a click. To verify that the light pollution filter is properly positioned, connect Vespera to your mobile device and launch the Singularity app. In the Space Center and then on the instrument screen, the word CLS is shown. The filter is of limited use when observing the moon, stars, and planets, which are very bright objects. It is designed for use in urban or suburban areas or in the presence of ambient light. It does not have to be used in an environment with ideal viewing conditions. Because the filter allows less light to pass through the sensor, the stacking speed may be slightly affected. The light pollution filter is ineffective against LED lighting.\u003c\/p\u003e\u003ch3\u003eDirection of Use\u003c\/h3\u003e\u003cp\u003eDo not expose the filter to direct sunlight. Store the filter in its box after each use to avoid dust buildup. If you notice any streaks or dust, gently clean the filter with an optical wipe, microfiber cloth, feather duster, or air blower. Do not attempt to open the lens ring that contains the filter.\u003c\/p\u003e","brand":"Vaonis","offers":[{"title":"Default Title","offer_id":42438091767856,"sku":"AC023","price":199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3155256.jpg?v=1759179138"},{"product_id":"vaonis-ac021-telescopes-astronomy-telescope-eyepieces-accessories","title":"Vaonis AC021 Solar Filter for Vespera Observes the Sun in Almost Real Time (Black)","description":"\u003cp\u003eAstronomer by night, an astronomer by day. Observe the closest star to Earth during the day with the Vaonis AC021 Solar Filter for Vespera. The filter allows you to observe sunspots (dark spots) that show the intensity of the Sun’s activity. The Solar Mode allows you to observe the Sun in almost real-time using the live display. Capture photos at any time from the Observation tab of the Singularity mobile app. Take several shots at different times of the day, week, or month and compare your photos. Witness how the Sun’s activity changes with the appearance or disappearance of sunspots. These can have a life span of several days, more rarely several weeks.\u003c\/p\u003e\u003ch3\u003eObserve Safely\u003c\/h3\u003e\u003cp\u003eThe filter is made of a metalized foil with a dimming effect. It will reduce the amount of light and allow you to observe the Sun in a way that is safe for your instrument. You will be guided through every step of your adventure by the Solar Mode of the Vaonis Singularity app, to ensure the observation runs smoothly and that you and your instrument are safe.\u003c\/p\u003e\u003ch3\u003eInstructions for Use\u003c\/h3\u003e\u003cp\u003eTo use the Solar Mode mode, your instrument must have been used at least once at night for the solar pointing to work. Designed specifically for Vespera, the filter fits easily and discreetly into the optical arm. During daylight hours and with the Vespera lens protected from direct sunlight, remove the standard lens ring and replace it with the solar filter until you hear a click. The fixing ring that holds the solar filter is equipped with an electronic card that allows Vespera to detect it. To verify that the solar filter is properly positioned, connect Vespera to your mobile device and launch the Singularity app. In the Space Center, click on Solar Mode and follow the step-by-step guide.\u003c\/p\u003e\u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\u003cp\u003eThe filter is delivered in a transparent storage box. Store the filter in its box after each use to avoid dust build-up. If you notice any streaks or dust, gently clean the filter with an anti-static cloth, feather duster, or air blower. To avoid damaging the surface coating, do not spray the filter with cleaning agents, but use a mist instead.\u003c\/p\u003e","brand":"Vaonis","offers":[{"title":"Default Title","offer_id":42438091898928,"sku":"AC021","price":179.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3154944.jpg?v=1759179159"},{"product_id":"vaonis-ac022-telescopes-astronomy-telescope-eyepieces-accessories","title":"Vaonis AC022 Vespera Dual Band Filter for Nebula Photography Black Exterior","description":"\u003cp\u003eThe Vaonis AC022 Vespera Dual Band Filter is a dual narrowband interference filter that will significantly improve your photo quality, whether you are viewing from an urban or natural environment. By selecting very precisely the wavelengths of Hydrogen Alpha (H-alpha) and Oxygen III (O-III), found mainly in nebulae, the filter will increase the contrast between the Stellar object and the sky background. Thus, its use makes it possible to obtain a higher-quality image, with sharper stars and finer details.\u003c\/p\u003e\u003ch3\u003eIdeal for Nebula Photography\u003c\/h3\u003e\u003cp\u003eThe Dual Band filter has been designed to allow only two particular wavelengths to pass through to the Vespera sensor, O-III, and H-alpha. Due to the filtered wavelengths, it is particularly effective for photographing nebulae in emission (e.g., Orion nebula M42, Heart nebula IC 1805), dark nebulae endowed with hydrogen (e.g., Horsehead or Elephant’s Trunk nebula), planetary nebulae (e.g., Owl nebula M97, Dumbbell nebula M27), and supernova remnants (e.g. Veil nebula, Crab Nebula M1). For globular clusters (e.g. Hercules cluster M13, cluster M92), the selectivity of the Dual Band filter will help you obtain sharper stars.\u003c\/p\u003e\u003ch3\u003eSpecifically Studied for Vespera\u003c\/h3\u003e\u003cp\u003eThe optical quality of the Dual Band filter has been specifically studied by our engineers to offer use at full aperture without any impact on the optical diameter of the instrument. The lens ring is equipped with an electronic micro-card that allows Vespera to detect the Dual Band filter and adapt its observation and image processing parameters. The filter features 12nm of bandwidth for each wavelength.\u003c\/p\u003e\u003ch3\u003eInstructions for Use\u003c\/h3\u003e\u003cp\u003eDesigned specifically for Vespera, the filter fits easily and discreetly into the optical arm. Remove the standard Vespera lens ring and insert the Dual Band filter until you hear a click. To verify that the Dual Band filter is properly positioned, connect Vespera to your mobile device and launch the Singularity app. In the Space Center and then on the instrument screen, the word dual is shown. The use of the dual-band filter is incompatible with the observation of galaxies due to the rejection of a good part of the spectrum, which attenuates the signal of the galaxies. The filter is of little interest for the observations of the moon, individual stars, and planets. The dual-band filter is ineffective against LED lighting.\u003c\/p\u003e\u003ch3\u003eDirections for Use\u003c\/h3\u003e\u003cp\u003eDo not expose the filter to direct sunlight. Store the filter in its box after each use to avoid dust buildup. If you notice any streaks or dust, gently clean the filter with an optical wipe, microfiber cloth, feather duster, or air blower. Do not attempt to open the lens ring that contains the filter.\u003c\/p\u003e","brand":"Vaonis","offers":[{"title":"Default Title","offer_id":42438153961520,"sku":"AC022","price":399.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/3155760.jpg?v=1759182316"},{"product_id":"celestron-95517-celestron-fcob-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron 1.25-inch LRGB Four-Filter Set (Open Box)","description":"\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Open Box\u003cbr\u003e\u003cstrong\u003eCondition Details:\u003c\/strong\u003e Fully functional item with opened or replaced packaging; essential accessories included.\u003c\/p\u003e\u003chr\u003e\u003cp\u003eTake color images of the night sky with your Skyris monochrome CCD camera, a simple filter wheel, and this four-piece LRGB filter set! These imaging filters were designed in our facility in California with a spectrum bandpass that produced optimum color balance and sharpness.\u003c\/p\u003e\u003cp\u003eEach 1.25” mounted filter has a clear aperture of 26mm and is layered with dichroic coatings that allow transmission of more than 92% of the visual spectrum (420 nm - 680 nm) while blocking infrared (IR) transmissions that would cause slightly out-of-focus images were they left unblocked. Anti-reflection coatings are also applied in multiple layers to further increase contrast and light throughput, and to protect the filter from the effects of daily use.\u003c\/p\u003e\u003cp\u003eThe Celestron LRGB Filter Set includes a luminance (L), red (R), green (G), and blue (B) filter. Since they are mounted in a standard 1.25” cell, these filters can be used with a wide variety of cameras, including the Celestron Skyris and The Imaging Source astronomy cameras.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe perfect LRGB filter set for the Celestron Skyris Filter Wheel\u003c\/li\u003e\n\u003cli\u003eRed, blue, green, and luminance filters made with quality glass, and mounted in a standard 1.25” cell\u003c\/li\u003e\n\u003cli\u003eDichroic coatings and multiple layers of anti-reflection coatings produce images with optimum color balance and light throughput\u003c\/li\u003e\n\u003cli\u003eFilters transmit more than 92% of the light from the entire visual spectrum while blocking more than 99% of IR transmissions in the 730 - 920 nm range\u003c\/li\u003e\n\u003cli\u003eCelestron LRGB filters are compatible with Skyris cameras, Imaging Source cameras, and others that accept standard 1.25” filters\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42832191750192,"sku":"95517-CELESTRON_FCOB","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/2808955.jpg?v=1773068836"},{"product_id":"celestron-95517-celestron-telescopes-astronomy-telescope-eyepieces-accessories","title":"Celestron 1.25-inch LRGB Four-Filter Set","description":"\u003cp\u003eTake color images of the night sky with your Skyris monochrome CCD camera, a simple filter wheel, and this four-piece LRGB filter set! These imaging filters were designed in our facility in California with a spectrum bandpass that produced optimum color balance and sharpness.\u003c\/p\u003e\u003cp\u003eEach 1.25” mounted filter has a clear aperture of 26mm and is layered with dichroic coatings that allow transmission of more than 92% of the visual spectrum (420 nm - 680 nm) while blocking infrared (IR) transmissions that would cause slightly out-of-focus images were they left unblocked. Anti-reflection coatings are also applied in multiple layers to further increase contrast and light throughput, and to protect the filter from the effects of daily use.\u003c\/p\u003e\u003cp\u003eThe Celestron LRGB Filter Set includes a luminance (L), red (R), green (G), and blue (B) filter. Since they are mounted in a standard 1.25” cell, these filters can be used with a wide variety of cameras, including the Celestron Skyris and The Imaging Source astronomy cameras.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe perfect LRGB filter set for the Celestron Skyris Filter Wheel\u003c\/li\u003e\n\u003cli\u003eRed, blue, green, and luminance filters made with quality glass, and mounted in a standard 1.25” cell\u003c\/li\u003e\n\u003cli\u003eDichroic coatings and multiple layers of anti-reflection coatings produce images with optimum color balance and light throughput\u003c\/li\u003e\n\u003cli\u003eFilters transmit more than 92% of the light from the entire visual spectrum while blocking more than 99% of IR transmissions in the 730 - 920 nm range\u003c\/li\u003e\n\u003cli\u003eCelestron LRGB filters are compatible with Skyris cameras, Imaging Source cameras, and others that accept standard 1.25” filters\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CELESTRON","offers":[{"title":"Default Title","offer_id":42837084340272,"sku":"95517-CELESTRON","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/files\/2808955_7be79409-50db-463a-9484-4733926c72d3.jpg?v=1773261648"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3219\/9216\/collections\/ChatGPT_Image_Jun_4_2026_03_48_25_PM.png?v=1780602520","url":"https:\/\/focuscamera.com\/collections\/eyepiece-filters-accessories.oembed","provider":"Focus Camera","version":"1.0","type":"link"}