Askar Colour Magic 2" Duo-Band Super D2 Filter - SII/OIII - CM-DUO-D2 type-astrophotography and imaging accessories It is especially good for

It is especially good for those users working from a seated position

The Pegasus Astro LED flat field panel provides a uniform source of illumination up to 150mm and produces high-quality flat field frames for astrophotography and photometric captures

About the Celestron Observer 's Accessory Kit

Compatible Filter Wheel:  CFW3-L & CFW3-M (combined with appropriate adapters

Askar Colour Magic 2" Duo-Band Super D2 Filter - SII/OIII - CM-DUO-D2 type-astrophotography and imaging accessories It is especially good forEnhance OIII & SII with this Askar Color Magic 2" Duo Band Filter! When shooting deep sky galaxies with colour cameras, a duo narrowband filter in the H and O bands is often used; whereas with a mono camera, a narrowband filter in the H, S and O bands is often used, leaving users with colour cameras missing one band of nebula detail. This can be compensated by using the ColourMagic Super D2 Duo narrowband filter (O+S). ColourMagic Super D2 Duo