This combination focal reducer and field corrector lens accessory works with all Celestron 125mm (5″), 150mm (6″), 203.2mm (8″), 235mm (9 1/4″), 280mm (11″), and 355.5mm (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, C6, C8, C9¼ and C11 telescopes and f/7 for the C14 telescope.
If offers wide fields of view with any Schmidt-Cassegrain telescope. For a 203.2mm (8″) telescope it means you’ll now be able to see the entire Sun and Moon through a low power eyepiece, using the reducer-corrector. 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.
This Reducer/Corrector Lens is not compatible with Celestron EdgeHD optical systems.
2-year Accessories Warranty