Askar ColourMagic 2" Duo-Band C1 Filter - Ha + OIII - CM-DUO-C1 vendor-kowa Check out the two performance

Check out the two performance charts in the above images to compare Unlocked Bin1 with Bin2

Length: 13

Works with Meade ETX90

Includes a carry handle

Gibraltar HD5 accepts all accessories including Sky Tour (spacers STS-5002 required to fasten the azimuth encoder cover to the wider baseplate)

Askar ColourMagic 2" Duo-Band C1 Filter - Ha + OIII - CM-DUO-C1 vendor-kowa Check out the two performanceDesigned 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