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 |
Reviews
Review by: Joshua
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)