F/6.3 focal reducer for Schmidt-Cassegrains


Availability: More on the way

This combination f/6.3 focal reducer/corrector lens reduces the focal ratio of all Celestron 5" through 14" Schmidt-Cassegrain telescopes, as well as all Meade 8" through 16" SCTs . . .
Our Product #: 8310
Antares Product #: SCTFR

Product Description

This focal reducer and field flattener consists of a four-element multicoated 40mm lens in a metal cell. It threads onto the rear cell of 5" to 16" Celestron and Meade Schmidt-Cassegrain telescopes, making it possible to have a dual focal ratio instrument without sacrificing image quality. The reducer/corrector duplicates the rear cell thread of the telescope, allowing you to attach all standard rear cell visual and photographic accessories to the reducer. The reducer/corrector converts the f/10 focal ratio of Celestron C5, C8, C9¼, and C11 telescopes (and all Meade 8" and larger f/10 telescopes) to f/6.3. The f/11 C14 telescope becomes an f/7. When used for astrophotography, it reduces exposure times by a factor of 3, with an actual field diameter of 1.5" at the film plane.

A rubber grip ring on the body allows for easy installation of the made-in-Canada reducer/corrector on your scope, even when you are wearing gloves.

Tech Details

Weight 4 0z.
Warranty 1 year


Review by:
I have used this reducer on my Skywatcher 12k Mak-Cass. Visually it works really well, widens the field of view and brightens the image up noticeably. I have used it for imaging as well, there is a small amount of vignetting and some distortion around the edges due to the over-correction but nothing that cant be cropped out. Only reason I dont give it 5 stars is because it does not come with lens caps, just the cardboard box. (Posted on 7/24/2019)
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