This guarantees you visibly sharp stars across some of the largest CCD chips available today. I have a Williams Optics 120mm F7.5 (900mmFL) Megrez refractor mounted on a Celestron AVX. GSO 1.25' 0.5x Focal Reducer for Telescope GSRD. Celestron’s FREE planetarium app is an astronomy suite that redefines how you experience the night sky. What is confusing me is that various pals in CN have told me they simply affix a regular (40mm long) Celestron visual back to the Celestron focal reducer and (fully) plug the camera's 1.25' nose-piece into that and it works, despite back focus from the Focal Reducer then being only being around 50mm (e. 1 bthrel Viking 1 topic starter Posts: 602 Joined: Loc: Linden, TN Posted 28 April 2021 - 10:18 AM Hello, New guy looking to dippiest my toes into EAA. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other competing coma-free designs. Agena AstroProducts is a leading online retailer of astronomy telescopes, binoculars, and accessories. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. Many optical designs that advertise themselves as "astrograph" quality actually only produce pinpoint stars across a curved focal plane. The optical system was designed to reduce more than just off-axis star coma, but also to give an astrograph quality flat focal plane all the way to the edge of the field of view. Sky-Watcher GoTo Dobsonian and EQ Mount SaleĮdgeHD is an aplanatic Schmidt telescope designed to produce aberration-free images across a wide visual and photographic field of view.Color Correction & Minus Violet Filters.Correctors, Focal Reducers & Flatteners.
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