Celestron - EdgeHD 1100 Optical Tube Assembly

FOCAL LENGTH - 2800 mm f/10 OPTICAL COATINGS - Starbright XLT OPTICAL DESIGN - Aplanatic Schmidt

SEE THE UNIVERSE IN HD Introducing Celestron's New Aplanatic Schmidt Telescope Design! visibly Sharper images Superior performance. Enhanced Mechanical features fastar Compatible

EdgeHD is an aplanatic Schmidt 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 "astrograph" quality actually only produce pinpoint stars across a curved focal plane. While this may be acceptable for visual observing, stars will appear out of focus at the edge when used with a flat chip sensor of a digital camera. EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope and dramatically flatter than other competing coma-free designs. This guarantees you visibly sharp stars across some of the largest CCD chips available today.

• Improved Performance Superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture.

• Starbright XLT Coatings Coupled with Celestron's Starbright XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum.