![]() ![]() The lens has a knurled surface, providing a tremendous gripping surface for threading/unthreading.ĭue to the design, the Reducer/Corrector lens does diminish a small amount of field curvature common to all Schmidt Cassegrain telescopes but does not eliminate it. ![]() The internal surfaces are blackened and glare-threaded to provide the highest contrast. The lens is housed in machined aluminum for are machined aluminum black anodized. Place the plastic covers on the lens when not in use to reduce the dust collection. This fully multi-coated lens provides maximum light transmission with near full-field illumination. The faster f/ratio allows you to use slower film or shoot in lower light level situations and still properly expose your subject. The Reducer/Corrector can also be used for terrestrial digiscoping. Once installed, you can add additional accessories like T-Adapters, 1.25” Visual Back, Star Diagonal, or Off-Axis Guider. The Reducer/Corrector is easy to install by threading the unit onto the rear cell of your Schmidt-Cassegrain telescope (or the reducer plate of the C11 and C14). Photographically you also get a wider field and much shorter exposures. For visual use, this means you get lower power with the same eyepiece and a wider field of view. ![]() A f/10 focal ratio now achieves a f/6.3, while an f/11 focal ratio now achieves a f/7. With the Celestron Reducer/Corrector Lens, that’s precisely what you get.Įxplicitly designed for Celestron Schmidt-Cassegrain telescopes, this unique lens reduces your telescope’s focal length and f/ ratio by 37%, turning your long focal length telescope into a fast, short focal length instrument. Imagine having two telescopes in one - a long focal length instrument for lunar and planetary work and a short focal length scope for deep sky observing and astrophotography. ![]()
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