Sharpstar 1× & 0.95× Coma Correctors

Sharpstar 0.95× corrector is designed with a three-element lens structure, integrated with reducing function and the reduction factor is 0.95. If you use this corrector on a f/5-focal-ratio reflector, the practical focal ratio will be f/4.75. And it supports APS frame imaging. Sharpstar 1× corrector adopts four-element optical design, and one of which is an ED glass. Compared with the former corrector, it has a more powerful ability in abberation correction. And it supports full-frame imaging. The camera-end of the correctors has M48×0.75 thread and the other end of the corrector accommodates standard 2 inch filters. Both correctors have a back-focus of 55mm.