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Cameras & Photo / Binoculars & Telescopes / Telescope Parts & Accessories / Other Telescope Parts
**** NOTE! ****Please order this only if you have knowledge of how it should be used and additional thread adapters that may be needed. If the thread on the back of your scope don't measure 2" diameter,or your scope isn't a SCT, this won't work without an additional adapter! For instance, if you have a Maksutov with 44.5MM threads, this adapter is needed: https://www.ebay.com/itm/281724910364 If your setup won't come to focus with this focal reducer, pleasedon't return the reducer before contacting us to assist with diagnosing the application. If the spacing between the FR and the image plane is not within range, it won't work well. Designed for f10 SCT's, this focal reducer yields a f6.3 system.Mounts on the SCT Schmidt threads on the rear cell of SCT's.Fully multicoated optics, anodized aluminum cell, rubber gripring. Male and female SCT Schmidt threads. This is a focal reducer designed for use with Schmidt Cassegrain telescopes, it has SCT 2"-24 threads for that reason. It works wellwith large SCTs down to the popular 5 and 6 inch size SCTs. While this may work as desired with other optical systems, it also may not yield desired results. While it will provide f-ratio reduction and field size change, and change to the field curvature, it is a SCT focal reducer. There is no "universal" focal reducer! Please order this only if you have knowledge of how it should be used and the thread adapters that may be needed. Don't guess and order, MEASURE! Price includes shipping in the USA!