From: Carl Weese (cweese@earthlink.net)
Date: 06/15/01-05:36:59 AM Z
Shannon,
I've read that in silver-gelatin POP some contrast control is available that
way--bright source and short exposure for higher contrast, diffuse, dimmer
source and slower exposures for reduced contrast. ---Carl
--
web site with picture galleries
and workshop information at:
http://home.earthlink.net/~cweese/
----------
>From: shannon stoney <sstoney@tnaccess.com>
>To: alt-photo-process-l@usask.ca
>Subject: contrast control, the sun, and cyanotypy
>Date: Thu, Jun 14, 2001, 10:46 PM
>
> Hi. Another cyanotype question, which may apply to other processes as
> well. I have been using the sun to expose my cyanotypes. When there are no
> clouds, the exposure takes about three minutes, and I get about eight steps
> on the step tablet. But, if it's cloudy, the exposure may take seven to
> eight minutes, and I get more steps! Has anyone else observed this
> phenomenon?
>
> --shannon
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