Re:Spots on negatives

["Elton N. Kaufmann - Cycloid Fathom Group" <cycloid@xxxxxxxxxxxxxxxxxx>]

Ernest:
I had this problem too several months ago.  After getting a lot of advice
from the list, I now use Xtol (1:1), mix all solutions using distilled
water, use a water stop bath, use reduced agitation (this also eliminates
the turbulence streaks from the sprocket holes), and precede it all with a
one minute distilled water presoak (same water is used later for the stop
bath).  The frequency of white spots has been greatly reduced.  I do have
to extend development somewhat to compensate for the reduced agitation.

						Good luck
							Elton
K>----------------------------------------------------------------------
>
>Date: Tue, 14 Jul 1998 18:29:51 -0400
>From: "Ernest Nitka" <enitka@xxxxxxxxxxxx>
>Subject: Spots on negatives
>
>Howdy - looking for help on why I have some white spots on my hi speed
>infrared negatives.  I developed them using HC110 B at the
> rec. time of 6.5 min and 68F in a stainless steel tank given a good several
> raps at the start of the developing process.  The white spots are not
> something I've seen with my usual B & W negatives.  Any ideas or
>solutions.?
> White spots are not on every negative or are they in the same location in
> those negatives that have them .  To me they look like bubbles that didn't
> allow proper development.  Does anyone on the list normally pre-soak their
> negatives - if so how much should the development time be reduced if using
>a
> pre-soak?
>
>  Ernie Nitka



Exhibiting fine-art and editorial photography
Cycloid Fathom Gallery
Elton N. Kaufmann, Chairman
P. O. Box 8129
Downers Grove, Illinois 60517-8129
USA
cycloid@xxxxxxxxxxxxxxxxxx
http://www.cycloid-fathom.com/
ftp.cycloid-fathom.com/group/uploads/
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End of Infrared-Digest V0 #686
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