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William Optics
RedCat 51mm f/4.9 Petzval Astrograph
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SpaceCat 51mm f/4.9 Petzval Astrograph
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Gran Turismo 81 f/5.9 Triplet APO
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ZenithStar 73 f/5.9 Doublet APO
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Gran Turismo 102 f/6.9 Triplet APO
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