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Re: [ATM] Cassegrain vs. Gregorian (secondary testing)

To: atmlist <atm@atmlist.net>
Subject: Re: [ATM] Cassegrain vs. Gregorian (secondary testing)
From: "Richard F.L.R. Snashall" <rflrs@rcn.com>
Date: Fri, 03 Sep 2004 02:09:13 +0100
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Michael Peck wrote:

 > There are lots of good null tests for cassegrain secondaries, many of
 > which I'm sure you know about. If not, there are numerous examples on
 > Peter Smith's web site, a few in Texereau, at least one in ATMT (vol.
 > 1), a dozen or more in Wilson's "Reflecting telescope optics, vol II".

I finally got around to writing this test up:

	http://users.rcn.com/rflrs/sectest.htm

-- 

Rick S.

http://users.rcn.com/rflrs


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