Two-mirror telescopes: Cassegrain, Gregorian and variants
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An example Cassegrain telescope system with a primary mirror at F/1.2,... | Download Scientific Diagram
Two-mirror telescopes: Cassegrain, Gregorian and variants
Lecture 6: Page 6
Cassegrain Formulas and Tips by Mike Lockwood
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Schmidt-Cassegrain telescope (SCT)
A Cassegrain telescope uses two mirrors as shown in above figure. Such a telescope is built with the mirrors 20 mm apart. If the radius of curvature of the large mirror is