Sky-Watcher 0.85x Focal Reducer/Flattener For Evostar 120ED/150ED DS-PRO

Designed for serious astro-photographers the focal reducer provides field-edge correction, removing aberrations from your shots, leaving you with beautiful, crisp images. The Sky-Watcher 0.85x Focal Reducer/Flattener is optimised for the corresponding model in the Sky-Watcher Evostar-ED DS-Pro range. They effectively reduce the telescopes focal length by a factor of 0.85x and provide much improved field edge correction. You will need to use a Sky-Watcher DSLR-M48 Ring Adaptor to connect this to your telescope.