I typed in Verichrome Pan Developing Times and it came up with plenty of posts/threads. In the first 4 threads was my own thread where the person in question who had developed this film replied. I had forgotten that I had tried to dev this type of film from someone who had found it in a drawer after having a lab do the film that was still in the camera I had been given. The person's name was Uhner by the way.
There is plenty of material there about dev times and based on my review of just a few threads I think you can forget about ever increasing dev times to compensate for reduced speed. A small increase only may be better
pentaxuser
I think testing is in order, but I would process normally, or something close to normal for a first pass. Extra exposure seems to be the key to bring the latent image up through the fog. I've read that HC-110 has fog-reducing capabilities, or at least is not fog-enhancing. You don't appear to have any on hand so I'm not sure these links will help, but they can't hurt:
http://foundfilm.livejournal.com/16982.html
http://photo.net/black-and-white-photo-film-processing-forum/00X1EE
http://www.geekosystem.com/expired-film-photos/
For what it's worth, I recently shot and processed some sheet film from 1944 in HC-110 for ten minutes at room temperature; it was severely fogged but produced a usable image when rated at EI 12. Good luck!
Jonathan
I just developed a roll of Verichrome Pan that expired in 1965, and was exposed over the past two days. Using a few hints I found lying around, I dropped my process temp to 64ºF. The only developer I have is Ilfosol 3, which I had been using 1:14 with new film—I increased the concentration to 1:9, figuring that would reduce the base fog. I also added a three minute (or so) presoak at 64ºF.
As it turns out, the negatives came out quite nice, and the film appeared to function quite well at EI125 (or thereabouts) using the sunny 16 rule. I haven't printed any of the negs for multiple reasons—I don't have a negative carrier yet (travesty!), and the negatives experience an insane amount of curl. Dunno how to make that go away.
Good to hear, what TIMES did you use? Thanks!
Sorry 'bout that
I started with the time listed for Plus-X (what Ilford's sheet calls Kodak 125 TX), which was a base of 5 minutes at 68ºF. Dropping the temp to 64ºF gave me a 6 minute development time. Ilford Rapid Fixer calls for a 5 minute fix timeI increased that to six minutes as well.
VERY cool! Looking forward to seeing the scans...
To get rid of, or at least decrease the curve, roll the film emulsion side out and let it stay so for at least day. Or two. I have similar curling problems with some of those CN17 films as well.
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