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Re: [ATM] conic constant

To: <atm@atmlist.net>
Subject: Re: [ATM] conic constant
From: Jim Burrows <burrjaw@earthlink.net>
Date: Wed, 23 Jan 2008 16:23:58 -0800
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At 2008-01-23 12:52 -0500, John K. LaShell wrote:

>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.

I think, but I'm not sure, that I've seen "k" somewhere for "b".  If 
you can ask ATMOS what k is for a sphere, then for a parabola, and 
the respective answers are 0 and -1, then they're the same.

         -- Jim Burrows
         -- http://home.earthlink.net/~burrjaw
         -- mailto:burrjaw@earthlink.net
         -- Seattle N47.4723 W122.3662 (WGS84)

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- Re: [ATM] conic constant
  - From: "Bob May" <rmay@nethere.com>

References:
- [ATM] conic constant
  - From: "John K. LaShell" <grace.community@rcn.com>

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