Celestron EdgeHD 800 Optical Tube Assembly - CGE Dovetail - 91030-XLT type-smartphone-adapters The recommended

The recommended

True Astrograph Quality - Many optical designs that advertise themselves as "astrograph" quality actually only produce pinpoint stars across a curved focal plane

in his Barlow test report in Sky and Telescope says: "Technology has erased the old objections

Vignetting can occur due to the altered ray path

assembly and testing ensures that each Celestron Telescope not only performs well

Celestron EdgeHD 800 Optical Tube Assembly - CGE Dovetail - 91030-XLT type-smartphone-adapters The recommendedAbout the Celestron EdgeHD 8 Optical Tube Assembly The EdgeHD is an aplanatic Schmidt Celestron Telescope designed to produce aberration free images across a wide visual and photographic field of view. 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. True Astrograph Quality Many optical designs that advertise themselves as