Filters

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...

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 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 ...

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...

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...

Seymour Threaded Helios Solar Glass Camera Filters  If you want to capture stunning images of the sun and its features, you need a solar filter th...

Seymour Off Axis Solar Filters This premium solar filter is safe to photograph or view the sun when mounted on your telescope. It is rated ND5 so ...

Shelyak High Voltage Power Supply High voltage power supply for spectral calibration lamps. This power supply is intended for “spectral lamps” wh...

Shelyak Spox Module SPOX lets you take control of the remote calibration module for Alpy 600, LISA and LHIRES III spectrographs (and the basic, non...

Shelyak Grating module for the UVEX SpectroscopeThe UVEX spectroscope is supplied as standard with a 600t/mm grating. You can complement this instr...

Shelyak Fiber optic connector kit for UVEX  Fiber optic kit to use a UVEX with an optical fiber (instead of a slot)This kit includes:– FC connector...

Shelyak Grating module for the Lhires IIIThe Lhires III was specially designed for High Resolution, but these complementary network modules enable ...

Shelyak LISA SpectroscopeThe LISA is the most sensitive instrument in our product range. Thanks to its internal reducer and low resolution, it is t...

Orion SkyGlow 1.25" Filter  Specialized astrophotography filter designed for deep-sky imaging in light polluted skies with CCD or DSLR cameras The...

Lunt Double Stack Filter for LS130MT & LS152THa Telescopes Double stacking provides a truly enhanced, high definition view of the Sun’s surface...

  Astronomik ProPlanet 807 IR-pass filter Ideal addition to the Astronomik ProPlanet IR 742 for imaging the moon and planets, with telescopes large...

Astronomik SII 6nm CCD MaxFR There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA the Epsil...

Astronomik SII 12nm CCD MaxFR Filter There is an ever growing demand for filters suitable for extremly fast optical systems like Celestron´s RASA t...

Astronomik SII 12nm CCD Filter This SII Filter is suitable for imaging of SII-regions from observation sites with light pollution and from dark sit...