Filters

Baader 3.5 / 4nm f/3 Ultra-Highspeed Filters – CMOS-optimized (H-alpha / O-III / S-II) Baader has released a whitepaper guiding you how to select...

Baader 3.5 / 4nm f/2 Ultra-Highspeed Filters – CMOS-optimized (H-alpha / O-III / S-II) Baader has released a whitepaper guiding you how to select t...

Kowa TP-95FT protective filter Compatiable products: Kowa TSN-883 spotting scopeKowa TSN-884 spotting scopeKowa telephoto lensHowa High Lander bin...

Kowa TP-105FT protective filter Compatiable products: Kowa TSN-99 PROMAINR The Kowa TP-105FT filter helps to protect the pure fluorite crystal obj...

Antlia Photometric Sloan Filters The Sloan Digital Sky Survery (SDSS) photometric system is the most common filter set used by observatory today. A...

Atik LRGB Filter Kit The Atik LRGB Filter Kit consists of Luminance, Red, Green and blue filters, that have been designed for CCD cameras to image ...

Atik EFW2.2 An upgrade on it's predecessor, The Atik EFW2.2 features a new mechanical location system for indexing the filter. This ensures that fi...

Atik 7nm Narrowband Filter Set The Atik narrow band filter are designed with a band pass of 7 nm to aid in capturing all a nebula’s photons while t...

Thousand Oaks Filter Material Bulk rolls of our silver-black polymer or SolarLite solar filter material can be used to create custom solar filters ...

IDAS GNB Galaxy & Nebula Filters Capturing Ha & OIII emission lines as well as the galaxy’s broadband signal in NIR at same time Availabl...

Askar Duo-Band Narrowband Filter The Askar Duo-band narrowband, as its name suggests, has two passbands, which is quite different from those singl...

Player One Photosphere 10nm 1.25″ Filter S-series Player One S series filter using high quality optical glass substrate and multi-layer composite c...

Chroma 3nm SII Filter Optimized for f/2.8-f/3.6 SII filters isolate the spectral emission of singly ionized sulfur atoms, also common in nebulae. E...

Chroma 3nm OIII Filter Optimized for f/2.8-f/3.6 Chroma’s OIII filters isolate the 500.7nm primary emission line of doubly ionized oxygen. After H...

Chroma 3nm H-Alpha Filter Optimized for f/2.8-f/3.6 H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized h...

Shelyak Alpy 600 The Alpy 600 and Demetra software (developed by Shelyak Instrument for the ALPY 600 spectrograph) will allow you to produce spectr...

Shelyak Alpy Guiding Module The spectroscope Alpy 600 can be used on table or in laboratory: in this case, just put the light source to be observed...

Shelyak Spacer for Star Analyser The Star Analyser 100 has been designed to work with the smallest commonly used sensor chips and the range of came...

Shelyak Star Analyser 200 Analyser 200 is a high efficiency 200 lines/mm transmission diffraction grating, blazed in the first order. It is mounted...

IDAS Full Spectrum (Clear) AR-coated Full Spectrum AR-coated filter Par-focal with all IDAS 48mm and 52mm, except QRO Series IDAS is a trademark o...

Celestron 1.25" UHC/LPR Filter Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wa...

Celestron 2" UHC/LPR Filter Our 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengt...

Celestron 1.25" Moon Filter The Moon has the distinction of being the most often viewed celestial object through backyard telescopes. It is undoubt...

Askar Color Magic SHO Narrowband 5nm Filters Set For all astrophotography enthusiasts, filter is one of the indispensable accessories to achieve a ...

Askar SII / Ha / OIII Narrowband 7nm filters SII Filter The Askar S II 7nm filter is suitable for imaging of S II emitting nebulae or some supernov...

Askar LRGB Filters The Askar LRGB imaging filter set is designed for those imagers who possess a monochrome camera that use either CCD or CMOS sen...

Askar Color Magic 3nm Deep-Sky Narrowband filter For all astrophotography enthusiasts, filters are one of the indispensable accessories to achieve...

Antlia CaK 3nm 393.3nm filter The Antlia Solar Wedge prism and internal CaK solar filter are made of heat resistant double-polished substrate. Antl...

ZWO Methane CH4 Filter 1.25" The ZWO Methane CH4 Filter 1.25″ is a special filter for photographic use. Its FWHM is 20 nm which is suitable for mos...

ZWO LRGB Filters The new ZWO LRGB Filters  are designed to approximately equalize the flux of mono sensors. The LRGB filters have a better transmis...

Antares 2" Neutral Density Filter Neutral density filters can reduce brightness across the visual spectrum without losing resolution, enhancing lun...

ZWO AR Protective Window for ASI ZWO D21 AR protect window Technical Parameter: Diameter: 21mm Type: AR window Thickness: 1.1mm Flatness: 1/4 λ Pro...

Tele Vue Bandmate OIII Filter The Tele Vue Bandmate OIII Filter passes light from doubly ionized oxygen atoms. As such, it is great for viewing pla...

Tele Vue Bandmate H-Beta Filter The Tele Vue Bandmate H-Beta Filter passes the aqua colored hydrogen-beta emission lines found in the Horsehead, Ca...