Filters

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

Antlia SHO 7nm Prime Narrowband Pro Filters Antlia SHO Prime narrowband filter optimizes the FWHM (full width half maximum) to 7nm bandpass. The su...

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...

ZWO IR 850nm Pass Filter 1.25" The ZWO IR 850nm Pass Filter 1.25″ suitable for IR sensitive cameras. The transmission properties of the IR 850nm Pa...

Antares 1.25" Variable Neutral Density Filter 3-40% Neutral density filters can reduce brightness across the visual spectrum without losing resolut...

Daystar Energy Rejection Filter ERF for Refractor The Daystar Energy Rejection Filter for Refractor reduces the heat load on your filter assembly b...

Astronomik CLS Filter The Astronomik CLS Filter is a budget filter for visual observation, Black & White photography and CCD photographs of neb...

Explore Scientific Nebula Filter H-Beta 1.25-inch   Explore Scientific Nebula Filter 1.25" H-Beta Range from 478nm to 496nm with peak at 489nm. Tra...

Explore Scientific Nebula Filter CLS 1.25-inch   Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmiss...

Explore Scientific Nebula Filter UHC 1.25-inch   Explore Scientific Nebula Filter 1.25" UHC Range from 458nm to 508nm with peak at 488nm. Transmiss...

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

Explore Scientific Nebula Filter S-II 1.25-inch 12nm High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost a...

Player One CH4 8nm 1.25″ Filter E-series Player One E-series is an upgrade series of S-series, using high quality optical glass substrate and multi...

ASTF: AstroSolar Telescope Filter OD 5.0 (80mm - 280mm) ASTF – Baader Solar Filter for all high-end Telescopes (Refractors, Reflectors, CATs) This...

Baader AstroSolar Spotting Scope Filter OD 5.0 (50mm - 150mm) This family of filters offers a stable and rigid solution for all spotting scopes, ca...

Antlia Solar Discover Dualband Energy Rejection Filter (ERF) The Antlia Dualband Solar Energy Rejection Filter is designed by combining Hydrogen Al...

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

Player One ERF 2″ Filter S-series for Quark Chromosphere Player One S series filter using high quality optical glass substrate and multi-layer comp...

Shelyak Alpy 200 Spectroscope The little brother of the ALPY 600 for spectra of very faint objects with a resolution of around R=130 ! The Al...

Seymour Hyperion Binocular Solar Filters (Pair) This pair of premium solar filters are safe for solar viewing when mounted on binoculars. They are ...

Shelyak High Voltage Power ConnectorThis connector is to be used with the high voltage power supply (ref. PF0082) and allows you to make a specific...

Shelyak Alpy 600 & UVEX slit 10µm, 35µm, or 50µm slit, compatible with ALPY 600 and UVEX spectroscopes Technical Specifications  10µm slit 35µ...

SVBONY Color Correction Filter for Lunar and Planetary Surfaces The color correction filter blocks unfocused light in the red part of the spectrum ...

Anti-Halo PRO Dual-Band 2″ Ha+OIII filter Anti-Halo PRO Dual-Band 2″ Ha+OIII filter Frame thickness: body 5mm+ thread 2.5mm, a total of 7.5mm F...

Optolong L-eXtreme F2 Fast Optics Dual Narrowband 2" Optolong L-eXtreme F2 is a dual-band (500.7 nm and 656.28 nm, FWHM=7 nm) narrowband pass filt...

Astronomik ProPlanet 742 IR-pass filter Ideal filters for the reception of the moon and planets, notably Mars, with telescopes from 6" (150mm) aper...

Astronomik SII 6nm CCD Filters This SII-CCD Filter is suitable for imaging of SII-regions from observation sites with light pollution and from dark...

Shelyak Power supply 12V/3A  12V (3A) power supply for video camera and our electronic modules (Lhires III, LISA calibration module, Alpy calibrati...

Shelyak UVEZ Motors     The UVEX is now motorized, and can therefore be used remotely. Motorization:Select the central wavelength of your spectra, ...

Shelyak Star'ex Low Resolution Optical Kit Star’Ex Low Resolution (LR) optical kit: all the optical elements to make your own Star’Ex LR instrument...

Shelyak Star'ex high resolution optical kit  With Star’Ex (Star’Explorer), create your first High Resolution (HR) spectrograph yourself to observe ...

Shelyak Handheld Spectroscope  This visual handheld spectroscope is a 115mm long tube with a very precise entrance slit which provides a very good ...

Shelyak LHIRES III The Lhires III is THE standard High Resolution reference spectroscopy.Gain access to the smallest details in the spectral lines ...