Filters

Explore Scientific Nebula Filter UHC 2.0-inch   Explore Scientific Nebula Filter 2.0" UHC Range from 458nm to 508nm with peak at 488nm. Transmissio...

Explore Scientific Nebula Filter Oxygen III 2.0-inch   Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with peak at 496nm. T...

Explore Scientific Nebula Filter H-Alpha 2-inch 7nm   High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "thr...

Explore Scientific Nebula Filter H-Alpha 2-inch 12nm   High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "th...

Explore Scientific Nebula Filter S-II 2-inch 6.5nm High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all...

Explore Scientific Nebula Filter S-II 2-inch 12nm   High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost al...

Explore Scientific Nebula Filter Oxygen III 2-inch 6.5nm   High quality Explore Scientific O-III filter Let only the oxygen emission lines "throug...

Explore Scientific Neutral Density Filter 1.25" ND 0.9 The neutral density filter transmits light uniformly across the entire visual spectrum. It s...

Explore Scientific Nebula Filter H-Alpha 1.25-inch 7nm   High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "...

Explore Scientific Nebula Filter H-Alpha 1.25-inch 12nm   High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen ...

Explore Scientific Nebula Filter S-II 1.25-inch 6.5nm High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost ...

Explore Scientific Nebula Filter Oxygen III 1.25-inch 6.5nm   High quality Explore Scientific O-III filter Let only the oxygen emission lines "thr...

Player One LRGB Filter S-series Player One S-series filter using high quality optical glass substrate and multi-layer composite coating technology,...

Antlia H-Beta 3nm Narrowband Pro 2'' Filter The Antlia H-Beta Pro narrowband filter optimizes the full width at half maximum (FWHM) to a 3nm ba...

Baader C2 Swan-Band Filter (15nm) – OIII Parallel   Comet filter for the two brightest C2 emission lines at 511 and 514nm (called "Swan-Band") in ...

Baader O-III Super-G Filter (9nm) - CMOS Optimized   O-III Super-G filter with 9 nm FWHM and a maximum transmission of 97%.For visual and photogra...

Baader SLOAN/SDSS Filters – Photometric   Baader SLOAN-ugriz' Bandpass Filter Set, suitable from f/15 to f/1.8 SLOAN/SDSS (ugriz’) photometric fil...

Baader BCF 1 - DSLR Astro Conversion Filter for Canon APS-C Cameras (all latest models)   DSLR Conversion Filter for Canon APS-C cameras (all lates...

Baader ACF 2 DSLR Astro Conversion Filter Canon EOS 350D/20D/10D/30D   DSLR Conversion Filter for Canon EOS 350D/20D/10D/30D.  Limited Stock Turn y...

Baader ACF DSLR Astro Conversion Filter EOS 300D   DSLR Conversion Filter for Canon EOS 300D Turn your Canon DSLR into a superb deep sky AstroCamer...

Baader T-2 C-Mount with mounted UV/IR Cut Filter 1" (25.4mm) C-mount (external thd) to T-2 Thread (internal thd) With integrated 1¼" filter mount ...

Player One UVenus 1.25″ UV-PASS Filter E-series Player One E-series is an upgrade series of S-series, using high quality optical glass substrate an...

Player One 7nm SHO Narrowband Filters 2" This is a New Product - Please note that further information will come soon.  Multilayer composite coating...

Player One 7nm SHO Narrowband Filters 1.25"  This is a New Product - Please note that further information will come soon.  Multilayer composite coa...

Antlia U-Venus Imaging Filter - 1.25'' Antlia Venus-U filter is designed for imaging the cloud structure of Venus and Jupiter with CCD cameras on a...

Thousand Oaks Broadband Light Pollution Reduction Filter - 1.25" Blocks most man-made light pollution (sky glow) from common sources such as mercu...

Artesky ERF rejection filter with metal cell The purpose of using an Energy Rejection Filter (ERF) is to prevent as much solar energy as possible f...

Artesky ERF rejection filter  The purpose of using an Energy Rejection Filter (ERF) is to prevent as much solar energy as possible from entering th...

Antlia NEW Solar Discover Dualband（Ha, CaK and CaH) - Standard The Antlia Solar Discover Dualband (Ha, CaK, and CaH) filter assembly comes in both ...

Antlia New Solar Discover 5Å CaK filter (SD-CAK5) The Antlia Solar Discover 5Å CaK assembly incorporates a set of light-reducing filters to reduce ...

Antlia New Solar Discover 3nm CaK filter Telescope-side connection is 1.25" and 2" Camera side connection is 2" with ring clamp Transmission at 3...

Kowa TP-72FT protective filter Compatiable products: The Kowa TP-72FT filter helps to protect the pure fluorite crystal objective lenses of the Ko...

IDAS Ha & OIII Dusk to dawn (DTD) Filters A new generation filter covering multiple objects including comets, galaxies, the Milky Way, and emis...

SVBONY SHO 5nm Narrowband 2" Filters The SHO filter 5nm 2 inch is highly transparent, allowing the emission spectrum of the nebula to collect as mu...