This guarantees you visibly sharp stars across some of the largest CCD chips available today. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than competing coma-free designs. While this may be acceptable for some visual observing, stars will appear out of focus at the edge when used with the flat chip sensor of a digital camera. Many optical designs that advertise themselves as "astrographs" actually only produce pinpoint stars across a curved focal plane. The optical system was designed to reduce more than just off-axis star coma it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view. A 9x50 finderscope, 2 mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all includedĮdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view.Celestron's premium StarBright XLT coatings provide maximum light transmission.Versatile design accommodates 2 focal ratios: native f/10 or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories.
Mirror support knobs hold the mirror in place and reduce image shift during imaging Aluminum optical tube with tube vents featuring an integrated 50-mesh filter allows hot air to be released from behind the primary mirror.Experience our best optical performance with EdgeHD's aplanatic, flat field Schmidt-Cassegrain optics for pinpoint stars all the way to the edge of today's largest imaging sensors and widest eyepieces.
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