Filters-Imaging

Celestron Basic Moon Filter - 1.25in   The Moon has the distinction of being the most often viewed celestial object through backyard telescopes. It is undoubtedly beautiful and mysterious, and is one of those constants in our lives that connects us...

Celestron Variable Polarizer, 1.25in   When you want to selectively reduce the brightness of celestial objects for a customized view, the Variable Polarizing Filter is the perfect choice. Unlike regular Moon Filters and Neutral Density Filters, the...

Celestron Neutral Density Filter, 1.25in   The Neutral Density Moon Filter attaches to a 1.25” eyepiece to lower the amount of light entering the eyepiece by 87%. The Moon is one of the most viewed objects in the sky, but you shouldn’t...

Baader Planetarium Stackable Filter Box

Celestron UHC/LPR Filter - 1.25in   Our 1-1/4" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapor,...

Baader Planetarium UHC-S Nebula Filter 2in

Baader Planetarium Narrowband H-Alpha Filter 7nm, 2in (with LPFC)

Celestron UHC/LPR Filter - 2in   Our 2" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapor, and...

Optolong Moon and SkyGlow 1.25in Filter Designed to darken the background sky by blocking light transmission from skyglow 589nm and many street light emissions from artificial light. 

Baader Planetarium O-III Nebula Filter, 2in Visual

Baader Planetarium Moon & Skyglowfilter, 2in Baader Neodymium

Baader Planetarium Moon & Skyglowfilter, 1.25in Baader Neodymium

Baader Planetarium UHC-S Nebula Filter 1.25in

Baader Planetarium RGB Filter Set 2in with UV/IR Cut L-Filter (Optically Polished, with LPFC)

Celestron Oxygen III Narrowband Filter - 2in   The 2" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501 nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light...

Optolong Variable Polarizer 1.25in Filter