Celestron Reducer Lens .7x For EdgeHD 800 (94242)

Celestron Reducer Lens .7x For EdgeHD 800 (94242)Celestrons EdgeHD reducers features a custom 4 element optical design engineered to maintain the flat field performance of our award winning EdgeHD optical system. Unlike generic reducers, our premium reducers provide substantial back focus to accommodate an assortment of imaging accessories. EdgeHD reducers offer high index optical elements, including extra low dispersion, exotic Lanthanum elements, which provide high contrast viewing while

All these various anti-reflection coatings on each glass surface were then optimized so that they are most effective where the human eye has its highest sensitivity at night - at about 520 nm - in the green region of the spectrum

The 94EDPH is designed with triplet air-spaced APO lens structure

optimizing your full-frame sensor’s capabilities

can require a precision back-focus to the image plane so as to not compromise colour and field curvature

Other features include bubble levels

The reticle can be focused separate from the finder itself

it's what's inside the mount that really counts

does not work well

ultra-clear

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)

All Maksutovs use a corrector plate to help reduce chromatic aberration

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