A telescope that contains both lenses and mirrors. Popular amateur catadioptric telescopes include those of Maksutov-Cassegrain and Schmidt-Cassegrain designs, which have a correcting lens at the front and a mirror at the back of the scope.
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A telescope that contains both lenses and mirrors. Popular amateur catadioptric telescopes include those of Maksutov-Cassegrain and Schmidt-Cassegrain designs, which have a correcting lens at the front and a mirror at the back of the scope.