Re: [APML] Flat Fielding

["Mike Connors" <micon@starband.net>]

Tom,

I suppose that it would be of value as a basic anti-vignetting mask, or an
illumination-falloff mask .  However, in the case of film I think you'd have
to do this for each film type and exposure times due to reciprocity failure,
since the film does not necessarily act in a linear manner.    What say you,
list?

Mike Connors


----- Original Message -----
From: "Tom &/or Elizabeth Skinner" <dateach@va.prestige.net>
To: <astro-photo@seds.org>
Sent: Monday, April 01, 2002 3:34 PM
Subject: RE: [APML] Flat Fielding


> Hello Group,
>
> I am writing a paper on flat fielding (target:  CCD) and was wondering if
> any of you use this technique for conventional film photography?
>
> Would there be any significant reasons for either doing it or not doing it
> with film?
>
> Tom
>
>
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