Filters-Imaging

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...

Celestron Oxygen III Narrowband Filter - 1.25in The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light...

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...

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,...

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...

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...

Baader Planetarium BCF Corrector Filter for Canon EOS 7D/40D/50D/60D/400D/450D/500D/550D/600D/650D/1000D/1100D

Baader Planetarium Clear Focusing 36 x 2mm, Round Filter (Optically Polished)

Baader Planetarium Clear Focusing 50.4mm Round Filter (3mm Thick, Optically Polished)

Baader Planetarium Clear Focusing 50x50mm Square Filter (3mm Thick, Optically Polished)

Baader Planetarium Clear Focusing 65x65mm Square Filter (3mm Thick, Optically Polished)

Baader Planetarium Clear Focusing Filter 1 1/4in (Optically Polished, with LPFC)

Baader Planetarium Clear Focusing Filter 2in (Optically Polished, with LPFC)

Baader Planetarium DSLR-Astro Conversion Filter (FBCF) for Canon 5D MkII

Baader Planetarium DSLR-Astro Conversion Filter ( Baader-ACF 1 ) for Canon EOS 300 improved spectral transmission! (plane opt. polished)