Celestron F6.3 Reducer/Corrector 20302 Focal Length of Eyepiece 1

Focal Length of Eyepiece 1 (mm): 20 mm (0

and field curvature

Contains: 600 b/w illus

featuring an additional dielectric UVblocker

85x and provides much improved field-edge correction

Celestron F6.3 Reducer/Corrector 20302 Focal Length of Eyepiece 1This combination focal reducer and field corrector lens accessory works with all Celestron 5", 8", 9 1 4", 11" and 14" Schmidt Cassegrain telescopes. This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Reducer Corrector is f 6. 3 for C5, C8, C9 and C11 telescopes and f 7 for the C14 telescope. It offers wide fields of view with any Schmidt Cassegrain telescope. Used for