Celetron Reducer Lens
Celestron’s new 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 minimizing chromatic aberration. All air to glass lens surfaces feature multiple layers of coating for maximum light transmission and color correction and contain blacken edges to minimize internal reflection and maximize image contrast.
Incorporating computer assisted CNC machined aluminum housing, for precise spacing and alignment of optical elements, and threaded metal covers on the lens assembly to protect your investment from dust and scratches, our reducers offer you an outstanding mechanical design.
With the Fastar option on all EdgeHD optical systems, coupled with the .7x reducer, your telescope becomes the most complete imaging system available in its price range today.
Large Illuminated Field
Please Note: The optimum photographic back focus of the EdgeHD 8” is 105 mm when used with #94242 Reducer Lens at f/7.
Our #93648 Off-Axis Guider, when used with the reducer #94242 and a DSLR, reaches appx 120mm.
Therefore because the 105mm distance is so critical, the Off-Axis Guider is not typically compatible for use with the EdgeHD 8" and Reducer lens combination.
The EdgeHD 11" and 14" all keep the same 146mm back focus with or without the reducer so are not affected.