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File:Cassegrain telescope-CnAM 1850-IMG 5447.JPG - Wikimedia Commons
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File:Cassegrain telescope-CnAM 1850-IMG 5445-black.jpg - Wikimedia Commons
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File:Cassegrain telescope - CNAM 1850.jpg - Wikimedia Commons
Celestron NexStar Evolution 8 203mm f/10 Schmidt-Cassegrain
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Cassegrain reflector - Wikipedia
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Cassegrain telescope
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