Filters

Celestron 1.25" Variable Polarizing Filter When you want to selectively reduce the brightness of celestial objects for a customized view, the Varia...

Tele Vue Bandmate Nebustar Type II Filter The Tele Vue Bandmate Nebustar Type II Filter is a unique narrowband design specifically for Tele Vue. It...

Lunt 60mm Ha Etalon Filter The Lunt LS60FHa is a 60 mm aperture (no central obstruction) integrally tuned etalon for use on a customer supplied ref...

Daystar Quark Gemini Chromosphere / Prominence Switchable H-alpha Filter The Daystar Quark Gemini brings the best contains both Prominence and Chro...

Chroma 3nm SII Filter The Chroma 3nm SII Filter isolates the spectral emission of singly ionized sulfur atoms, also common in nebulae. Emission is ...

Chroma 3nm OIII Filter The Chroma 3nm OIII Filter isolates the 500.7nm primary emission line of doubly ionized oxygen. After H-alpha, this is the n...

Chroma 3nm H-alpha Filter The Chroma 3nm H-alpha Filter is essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 6...

Celestron H-alpha H-beta OIII imaging filter, RASA 8 Bring out the best in your nebulae astroimages with the H-alpha H-beta OIII (Hα-Hβ-OIII) Imagi...

Baader Contrast Booster Filter Eliminates the color error of economy refractors. Clearly puts the real quality of the lens on display. Removes the...

Baader AstroSolar Photo Film OD 3.8 AstroSolar Photo Film (imaging only), telescope quality, Optical Density OD = 3.8 Digital solar imaging at hig...

iOptron 70mm Adjustable Solar Filter ISO-12312-2 CertifiedWhite light solar filter with SolarLite solar film from Thousand Oaks Optical which has t...

Astronomik ProPlanet 642 BP IR-pass filter  The Astronomik ProPlanet 642 BP is the latest addition to the family of Astronomik ProPlanet IR-pass f...

Celestron EclipSmart Solar Filter for PowerSeeker 70AZ/EQ and Travel Scope 70 Telescopes ISO-CERTIFIED SOLAR TELESCOPE FILTER: Certified to compl...

Buckeye Filter Masks for Filter Wheels These Filter Centering Masks will make it easy to center your filters in a filter wheel, and will block any ...

Shelyak Star Analyser 100 The Star Analyser 100 is a high efficiency 100 lines/mm transmission diffraction grating, blazed in the first order. It i...

Lunt Internal Double Stack Module for LS80THa Double stacking provides a truly enhanced, high definition view of the Sun’s surface details. Notably...

Lunt 40mm Front Mounted Double Stack Filter It’s finally available! The Lunt Solar 40mm Double Stack Hydrogen-alpha Filter. LS40FHa solar filter f...

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...

Lunt 50mm Compact Ha Etalon Filter The specially-designed Lunt Solar Systems LS50C is a compact double stack filter. Notably, it was made especiall...

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

Chroma LRGB Filter Set Chroma LRGB Filter Set includes four individual filters: luminance, red, green and blue. They are available in multiple size...