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Engineered to deliver sharp and clear distortion-free views, the Celestron EdgeHD 11" f/10 Aplanatic Schmidt-Cassegrain Telescope
is an ideal choice for observation, astrophotography, and imaging
objects within or beyond our solar system. It features an aplanatic
Schmidt-Cassegrain optical system consisting of a corrector plate, a
spherical primary mirror, and a secondary mirror along with a set of
field-flattening lenses integrated into the baffle tube. Complementing
the EdgeHD system is the proprietary StarBright XLT optical coating
system, which improves light transmission and reflectivity across the
entire visual spectrum. The combination of EdgeHD and StarBright XLT
produces bright and clear high-resolution images with true color
rendition across the entire field of view without distortion,
aberrations, or off-axis comas.
Optimized for imaging, the
internal focusing system features mirror support clutches to ensure
proper alignment and mirror locks to avoid accidental defocusing during
long-exposure astrophotography. The optical tube is outfitted with an
oversized 2" visual back to ensure large imaging sensors are completely
covered to avoid vignetting. For visual observations, a 2" star diagonal
is included along with a 23mm wide-angle eyepiece that yields a
respectable 122x power. A reducer adapter is provided to allow the use
of smaller and more common 1.25" eyepieces and accessories. The EdgeHD
11 is offered here without a mount or tripod for users who already have a
reliable support system and are looking to upgrade or add to their
existing gear, but it comes with a large CGE dovetail plate that is
compatible with Losmandy saddles.
Based on Astronomy magazine’s telescope "report cards", scopes of this size and type generally perform as follows . . .