From: Shannon Stoney (sstoney@pdq.net)
Date: 04/02/03-09:25:35 AM Z
Shelley wrote:
>
>I hadn't even thought of something like this!!!
>I saw some of the other students yesterday, and their prints were
>fine. They had also done them on bright, sunny clear days.
Sometimes even when it LOOKS sunny, exposures can be inordinately
long. Once I was making cyanotypes on a sunny day in Houston, and
they were taking 20 minutes! At first I thought the glass might be
UV resistant, as it was the first time I had used that frame, but
then I tried my old tried and true frame, and it was the same.
Apparently there can be haze filtering the UV light that we can't
even see. This may be a bigger problem in Houston than in other
places, though. I never had it happen in TN. There, my summer mid
morning exposures were about three minutes.
--shannon
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