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Re: [ATM] Secondary Offset

To: Mitchell R <funnybone101@embarqmail.com>, atm@atmlist.net
Subject: Re: [ATM] Secondary Offset
From: Alexis Cousein <al@sgi.com>
Date: Thu, 24 Jan 2008 20:22:29 +0100
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 > I used my collimation cap, which only
 > centers your eye. Then by racking the focuser all the way out you can get an
 > idea of how centered you are.

A collimation cap plus the focuser draw tube is also a sight tube of sorts.

It's just one that usually has an aspect ratio that's too short to
judge concentricity extremely precisely.


-- 
Alexis Cousein                                  al@sgi.com
Senior Systems Engineer/Solutions Architect     SGI/Silicon Graphics
--
<If I have seen further, it is by standing on reference manuals>

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References:
- [ATM] Secondary Offset
  - From: "Mitchell R" <funnybone101@embarqmail.com>
- Re: [ATM] Secondary Offset
  - From: Mike Lockwood <melockwo@uiuc.edu>
- Re: [ATM] Secondary Offset
  - From: "Mitchell R" <funnybone101@embarqmail.com>
- Re: [ATM] Secondary Offset
  - From: Alexis Cousein <al@sgi.com>
- Re: [ATM] Secondary Offset
  - From: "Mitchell R" <funnybone101@embarqmail.com>
- Re: [ATM] Secondary Offset
  - From: "Stephen Koehler" <s.c.koehler@gmail.com>
- Re: [ATM] Secondary Offset
  - From: "Mitchell R" <funnybone101@embarqmail.com>

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