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[ATM] conic constant

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Subject: [ATM] conic constant
From: "John K. LaShell" <grace.community@rcn.com>
Date: Wed, 23 Jan 2008 12:52:24 -0500
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Hi, everybody. I'm working (very slowly) on a 12.5 inch f/3 Gregorian. Is the conic constant "k" in ATMOS the same as the coefficient of deformation "b" in Texereau (2nd edn. p. 77)? I enjoy the posts on various subjects & have learned some valuable lessons. This is my third scope -- I've done two 6 inch Newtonians.
John
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