Re: [APML] Question on vignetting

["Bradley" <bhope@thorngarden.net>]

Thanks, Duncan;

Looks like yours is a little less than what I'm seeing with mine. Could that
be a result of the reduced distance of film plane from FR and/or rear cell
(looks like your film plane is closer both to FR and rear cell, actually)?

Clear, dark and steady skies

Bradley

Thorn Garden Observatory
http://astronomy.thorngarden.net

----- Original Message ----- 
From: "Duncan Munro" <dmunro@sfu.ca>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Tuesday, March 15, 2005 10:17 AM
Subject: Re: [APML] Question on vignetting


> I have a sample of vignetting with a f6.3 R/C and a 10" Meade here:
>
> http://www.sfu.ca/%7Edmunro/essay.html
>
> you can't hope to fill a 35mm frame but you should be able to almost
> fill a DSLR frame.
>
> cheers
>
> Duncan

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