 Celestron EdgeHD Telescopes Celestron have taken the Schmidt-Cassegrain optics they did so much to popularise and have modified them to meet the increasing demands of today's astrophotographers and their modern detectors. Digital detectors have transformed astrophotography with their greater sensitivity, linearity, dynamic range and low noise. Initially their small size meant that existing optical designs were adequate to illuminate them fully with sharp images, but as chip sizes have grown it has become necessary to develop new optical designs to match them. Celestron's EdgeHD design produces a large, flat focal plane with pin-sharp images right out to the edge, just what the demanding astrophotographer needs. Not only that, Celestron have made the new telescopes Fastar Compatbible meaning you can use them with Hyperstar for fast, wide-field prime focus imaging at f/2. EdgeHD optics are available on Celestron's CGE and CGEM mounts, and as optical tube assemblies. Learn more about EdgeHD Telescopes Learn more about Hyperstar |