Filters-Imaging

Baader Planetarium H-Alpha 35nm CCD Filter, 50x50 x 3mm Square

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

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

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

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 2 ) for Canon EOS 350D/10D/20D/30D improved spectral transmission! (plane opt. polished)

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

Meade #905 Variable Polarizing Filter (1.25in)

Lunt Solar Systems Polarizing Filter Unit, 1.25in

Lunt Solar Systems Polarizing Filter Unit, 2.00in

Tele Vue 48mm Filter Adapter for 2.4in

Celestron Light Pollution Imaging Filter, RASA 11   Get the most out of your Celestron Rowe-Ackermann Schmidt Astrograph 11, even under light-polluted skies, with this Light Pollution Imaging Filter, custom-designed for the RASA. No matter which...

Celestron Light Pollution Imaging Filter, RASA 8   Light pollution in the night sky can significantly degrade contrast in astronomical images. This is especially true when using very fast telescopes like the 8” RASA because the sky background...

Celestron IR-Cut Filter for Color Skyris Cameras   Color CCD cameras such as the Skyris color planetary cameras are very sensitive across the visual spectrum, as well as in infrared. Some telescopes may correct for chromatic aberration, but are not...

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...