Filters-Imaging

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 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 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 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 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...

Lunt Solar Systems Polarizing Filter Unit, 1.25in

Lunt Solar Systems Polarizing Filter Unit, 2.00in

Optolong L-Pro EOS-FF Filter L-Pro is a multi-bandpass filter offering better color balance by maximizing the transmission band.  A good choice for light pollution suppression.

Optolong UHC 1.25in Filter

Optolong UHC 2in Filter

Optolong Venus U 1.25in Filter Image Venus in the UV-A (320-400nm) and observe Venus’ cloud structures.

Optolong Venus U 2in Filter  Image Venus in the UV-A (320-400nm) and observe Venus’ cloud structures.

Tele Vue 48mm Filter Adapter for 2.4in