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Re: ATM "collimating" diagonals

To: atm@shore.net
Subject: Re: ATM "collimating" diagonals
From: Jay LeBlanc <jaleblan@dakotacom.net>
Date: Tue, 07 Dec 1999 14:36:27 -0700
In-Reply-To: <3.0.1.32.19991207152242.006a3854@pop.mindspring.com>
Reply-To: Jay LeBlanc <jaleblan@dakotacom.net>
Sender: owner-atm@shore.net


At 03:22 PM 12/7/99 -0500, you wrote:

>How important or degrading to the image are these apparent misalignments??
It becomes a question of how much astigmatism you can tolerate!
Try using an artificial star like an xmas shiny ball in the sun in a well
collimated refractor.  Put the diagonal in and shim the mirror while
examining an extrafocal image.  Stop when it is nice and round!   -Jay-



Visit my website at: <http://www.dakotacom.net/~jaleblan/index.html>

Follow-Ups:
- Re: ATM "collimating" diagonals
  - From: Dwight Elvey <elvey@hal.com>

References:
- ATM "collimating" diagonals
  - From: "Frank Schiralli, Jr." <schiralli@mindspring.com>

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