Celestron Reducer/Corrector f/6.3 — for standard Schmidt-Cassegrains The Celestron Reducer/Corrector reduces the focal length and focal ratio of a standard Celestron Schmidt-Cassegrain by 37% (0.63×), turning an f/10 SCT into an f/6.3 instrument while also correcting the field. You gain a wider field of view and shorter exposures, giving you a…
Manufacturer model: Celestron Reducer-Corrector f/6.3 (0.63x) · Specifications checked against manufacturer data on 2026-11-03
The Celestron Reducer/Corrector reduces the focal length and focal ratio of a standard Celestron Schmidt-Cassegrain by 37% (0.63×), turning an f/10 SCT into an f/6.3 instrument while also correcting the field. You gain a wider field of view and shorter exposures, giving you a dual-focal-ratio telescope without sacrificing image quality.
Celestron designs it for its Schmidt-Cassegrain telescopes: C5, C6, C8, C9.25, C11 and C14. It is not for EdgeHD optical tubes, which need their own dedicated 0.7× reducer, and not for Maksutov, refractor or Newtonian telescopes.
| Reduction | 0.63× (37%) |
|---|---|
| Compatible | Celestron C5, C6, C8, C9.25, C11, C14 SCTs |
| Not compatible | EdgeHD, Maksutov, refractor, Newtonian |
| Coatings | Fully multi-coated |
| Housing | Machined aluminium, black anodised; knurled grip |
| Dimensions | 56 mm diameter × 34 mm long |
| Weight | 121.9 g |
Standard SCT only. Not EdgeHD. Sensor spacing and image circle not published on product page.
| Not compatible | EdgeHD, Maksutov, refractor, Newtonian |
|---|---|
| Housing | Machined aluminium, black anodised |
Data sheet
Celestron Reducer/Corrector f/6.3 — for standard Schmidt-Cassegrains The Celestron Reducer/Corrector reduces the focal length and focal ratio of a standard Celestron Schmidt-Cassegrain by 37% (0.63×), turning an f/10 SCT into an f/6.3 instrument while also correcting the field. You gain a wider field of view and shorter exposures, giving you a…
Manufacturer model: Celestron Reducer-Corrector f/6.3 (0.63x) · Specifications checked against manufacturer data on 2026-11-03
