Sky Watcher 0.9x Reducer/Field Flattener for Evolux-82ED (Product Code 20112)
Two-element design incorporating one ED element. Reduces the standard focal length of the Evolux-82ED by a factor of 0.9x and provides top quality field-edge correction.
The flattener/reducer illuminates a full-frame format and provides pinpoint star imaging over a 36mm image circle. Provides focal length of 477mm & f/5.8. Field of View 4.34°. Back focus 55mm. Fully multi-coated. Supplied with adaptor/field-rotator.












