RE: [APML] Another Central Auriga

["Sean Walker" <swalker@SkyandTelescope.com>]

sure it isn't a side effect or processing artifact from vignette reduction?

Sean Walker

-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Matt BenDaniel
Sent: Thursday, October 17, 2002 10:10 PM
To: astro-photo@seds.org
Subject: Re: [APML] Another Central Auriga


At 09:47 PM 10/17/2002 -0400, Chris & Jennifer Cook wrote:
>True.
>
>The reason I don't think it's from humidity is that this fog is around
every
>edge in his shot.  Not just the marked edges....where it would be more apt
>to be exposed to moisture in the air from being in storage/a new roll
rolled
>up...
>If it is humidity why is it not across the whole frame?  The whole frame of
>film is exposed to moisture in the air during the exposure.
>Also, his film is not hypered so it can't be moisture related as far as
that
>goes.

The only other cause I can think of is differential reciprocity failure.
--
Matt BenDaniel
matt@starmatt.com
http://starmatt.com


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