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Re: [ATM] Secondary Offset

To: wkitty42@alltel.net
Subject: Re: [ATM] Secondary Offset
From: Alexis Cousein <al@sgi.com>
Date: Fri, 25 Jan 2008 01:00:37 +0100
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waldo kitty wrote:
> Mitchell R wrote:
>> Hm Okay. Normally I sort of just eye ball it, there is no way for me to
>> truly center it under the focuser so I just adjust it till it looks centered
>> under the focuser, hopefully that is offsetting it enough.
> 
> the real question is... /does it work for you?/ if the image thru the eyepiece 
> looks round and the image doesn't have any deformities or coma and such, it is 
> probably ok ;)
> 
Lack of offset never causes aberrations, just a smaller fully illuminated field,
or one not centred around the on-axis object.

-- 
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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Follow-Ups:
- Re: [ATM] Secondary Offset
  - From: waldo kitty <wkitty42@alltel.net>

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: waldo kitty <wkitty42@alltel.net>

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