* Astronomy

Meade LXD75 SN-8AT 8" Schmidt-Newtonian Telescope


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Schmidt- and Maksutov-Newtonians are catadioptric telescopes (ie they  both use mirrors and lenses).

The optical design of the Schmidt-Newton telescope combines elements from both the Schmidt camera and the Newtonian telescope. In this system the parabolic primary mirror common in newtonian reflector is replaced by a spherical mirror, which introduces spherical aberration. This is corrected by the Schmidt corrector plate, like that used in Schmidt-Cassegrain telescopes. From the Newtonian, it inherits the flat secondary mirror.
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