Askar ColourMagic 2" Duo-Band C1 Filter - Ha + OIII - CM-DUO-C1 vendor-kowa Length: 13

Askar ColourMagic 2" Duo-Band C1 Filter - Ha + OIII - CM-DUO-C1 vendor-kowa Length: 13Designed for deep sky imaging of emission nebulae with a color camera, the Askar ColourMagic C1 Duo Band Filter permits both H alpha and Oxygen III wavelengths through while blocking those that contribute to light pollution. The peak transmission is 90% at the center wavelength of 500. 7nm and 656. 6nm. This combination will enhance contrast, darken the background sky, and produce better images of emission nebulae. While this filter is similar to the

SKU: 25089195220 · From clintoncounty708.com