Sparky
Allowing Ads
The disturbing thing on one or two of the prints is that a few
straw colored patches showed up only after about 15 mins in
the wash...! - I threw them all back in a third fix bath after
seeing that. No - I found the patches do NOT wash off.
That's why I refer to them as 'burn' patches.
I suspect it is simply residual ionic silver 'printing out'
that's doing this.
Use stronger fix. Sounds like it was too dilute for some reason.
PE
That patchiness bespeaks of uneven fixing. Those print
areas of least exposure contain the greatest amount of
fixed silver. If they are clean then overall the
print Should be.
An aside: I wonder if not the ST-1 test may be
superfluous. If silver is present in the emulsion and
prints out with lights on then why use that sulfur test
for residual silver? Perhaps it is more sensitive? Dan
Although this does not address your point, consider single tray processing. Since I switched to that I have had no mysterious processing problems. Carryover from one solution to the next is greatly minimized. However, I am always amazed how yellow my first fix solution gets (from the indicator stop) even though I give a thorough water rinse after the stop. I use relatively small volumes of solution but if printing a larger run I will dump used solutions midway and replace with fresh chemicals.
You did not mention if this problem was happening with fresh fixer or used fixer. Also, a simple test for clearing time with your paper and your fixer could give you an idea of its activity. Hard to imagine that a fresh, two bath fixer diluted 1:3 would be inadequate.
Do you mean one tray for ALL solutions or single fix? I think there's a surprising amount of solution lurking in the laminar layer of a print... maybe as much as 10 ml on a well-shaken-off 8x10 - and 40ml on a 16x20...
The fix is (relatively) fresh. Worst-case scenario is re-using it from the previous session (my volume of prints is quite low).
A single tray for all solutions. The HeyLloyd website alluded
to earlier gives an explanation. For 8x10 prints, I use 11x14
inch trays and a series of 2000 ml beakers for each of the
chemicals. No tongs, less mess, less fumes, less space,
works well for batch processing also.
...All chemistry is used
very dilute with workable but minimal solution volumes...
Dan
Sparky, I am dismayed at the problem you describe. The only time I have seen anything like the issue you describe was an emulsion problem. Please send me a sample of the problem so I can look at it myself.
Clayton Chemical
1210 W. Jon St.
Torrance, CA 90502
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