Celestron - Reducer / Corrector f/6.3

Reducer/Corrector f/6.3 
 
This 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, C9¼ and
C11 telescopes and f/7 for the C14 telescope.
 
If offers wide fields of view with any
Schmidt-Cassegrain telescope. Used for astrophotography, it reduces exposure time by a factor of
3.
 
Celestron doesn’t offer a f/6.3 Schmidt-Cassegrain telescope, because the design is
impractical, with a large central obstruction, and resulting loss in contrast. This, added to the
inability to utilize longer focal ratios for certain objects, led Celestron to design the
four-element, fully multicoated f/6.3 Reducer/Corrector. Results are amazing both visually and
photographically.