[pure-silver] Re: Mystery lines?
- From: Jeffrey Thorns <puresilver@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sun, 15 Apr 2007 14:20:29 -0700
----- Original Message ----- From: "Jeffrey Thorns" <puresilver@xxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Saturday, April 14, 2007 6:25 PM
Subject: [pure-silver] Re: Mystery lines?
Well the final resolution is rather odd.
I mixed up twice as much LPD and still got the density marks.
I opened a new box of paper. Same marks.
Walked thru everything with safelights out to look for static or
light leaks - nothing.
I scrubbed out the dev tray, and mixed up some Agfa Neutol. Seemed
to improve the situation (density marks were much smaller and
fainter), but still a few marks.
I should mention that the fixer I was using is something new to me
(Silvergrain Clearfix Alkaline Fixer).
I was also using a very fast rinse in the stop bath (Kodak
Indicator) - just 10-15 seconds.
I mixed up some Ilford Rapid Fix and lengthened my time/agitation
in the stop bath and voila - marks are gone. Made another 15 11x14s
from various negs and had no re-occurance of the mystery marks.
Now, maybe, I changed other things and don't realize it, but, I
never would have thought that the fixer could have anything to do
with density marks(!?!?)
I wonder if the fixing was complete. Test one of the prints with
Kodak Selenium toner diluted 1:9. If there is any residual silver or
silver complex in the print it will stain yellow or brown.
Mixed up some fresh KRST 1:9, 74 degrees, constant agitation for 3
minutes and no stains or new marks appeared, neither while in the
toner, nor after drying. The print appeared to slightly darken and
took on the purple tinge. (It's a night scene, so most of the image
is very dark tones.)
I'll just chalk this episode up to the Mysteries That Are
Photography, and hope I don't see a replay.
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