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Side Error
From: Bill B
Date: 2005 Mar 22, 17:36 -0500

I am attempting to tweak my new Astra III B deluxe (traditional split horizon mirror, front silvered index mirror). It will be months before I have a distant horizon to work with, so have been using a faint star. That gets me most of the way there. My question, can I use any sharp line to test/adjust even if it is only several hundred yards away? My guess is yes, as parallax between the horizon and index mirrors should not be a problem, but my guesses are so often in error. Thanks Bill

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