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Baader MPCC Mk3 Coma Corrector Spacing
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25-02-2021, 07:35 PM
Peter Ward
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Join Date: Dec 2007
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No surprises there.
55mm is the standard for spacing of T-Thread (M42) adapters.
Many SLR camera T-adapters were made to conform to that standard, the which was also adopted by Baader.
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