In a reflecting telescope (Cassegrain), is there a difference between using a concave or convex secondary mirror? - Astronomy Stack Exchange
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File:Diagram Reflector SchmidtCassegrain.svg - Wikimedia Commons
Schematic diagram of the adapted, receiving Meade Schmidt–Cassegrain... | Download Scientific Diagram
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Schematic of a Schmidt-Cassegrain Telescope (Meade 8") | Download Scientific Diagram
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vik dhillon: phy217 - catadioptric telescopes
Cassegrain reflector - Wikipedia
Schematic diagram of the adapted, receiving Meade Schmidt–Cassegrain... | Download Scientific Diagram
Schmidt-Cassegrain Design — Starizona
Reflective Schmidt?Cassegrain system for high-aperture telescopes. | Download Scientific Diagram
astronomical optics, part 3: the astronomical image
Cassegrain Formulas and Tips by Mike Lockwood
How does a Schmidt-Cassegrain telescope work? - Quora
vik dhillon: phy217 - catadioptric telescopes
What are the problems with the Schmidt–Cassegrain telescope? - Quora
Schmidt-Cassegrain Telescopes - Cosmic Pursuits
File:Diagram Reflector SchmidtCassegrain.svg - Wikimedia Commons
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