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Celestron EdgeHD 800 OTA |
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EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces 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; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view. 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. This guarantees visibly sharp stars across some of the largest CCD chips available today. |
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With Celestron’s StarBright XLT optical coatings on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum. Flexible tension clutches hold the mirror in place and reduce image shift when taking long exposure astro-images. Once focused, the flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror assembly, keeping the image centered in the eyepiece (or on the sensor). |
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Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror. At its native f/10, that achieve the image scale necessary to capture the smallest of deep sky objects. Every EdgeHD that ships has been tested not only for the surface quality of each optical component, but also with a camera and artificial star to ensure the imaging system meets our rigid quality assurance. A 9x50 finderscope is provided to locate objects quickly and accurately. The telescope is supplied with dovetail rail that is compatible with CG-5 mount. |
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