zlyden
16.07.2009, 08:36
http://www.telescope.com/control/category/~category_id=celestron_cassegrain/~pcategory=celestronstore
Celestron's innovative new EdgeHD telescopes are aplanatic Schmidt Cassegrain models 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 give an astrograph-quality flat focal plane all the way to the edge of the field of view.
Celestron's innovative new EdgeHD telescopes are aplanatic Schmidt Cassegrain models 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 give an astrograph-quality flat focal plane all the way to the edge of the field of view.