Celestron 0.63x Focal Reducer

This combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9 .25", 11" and 14" Schmidt-Cassegrain telescopes

This makes it possible to have a dual focal ratio instrument, without sacrificing image quality. The Reducer/Corrector makes the C5, C6, C8, C9.25 and C11 a f/6.3 telescope and the C14 a f/7 C14 telescope