>On Wednesday 04 January 2017 14:57:07 paulhurm wrote: >I don't know as I would call it silver creep. What it is chemically, >it >that the developer blacked silver, because of inadequate washing, has >reverted to the silver. > >I haven't personally seen enough of this to consider the obvious >solution, which would be to develop it again, with a modern developer, >Dektol if you can find it, perhaps even D-23 which ypu have to make >yourself, then a weak acetic acid stop bath for perhaps a minute to >neutralize the calcium carbonate accelerator in the developer, then >refix to get rid of any residual silver, 3 or 5 minutes, then wash in >running tap water for half an hour or more to remove the fixer, all at >temps of 68 degrees or so. 75 works faster if you can muster up the >warm >water fast enough. Then let air dry for at least an hour. I would not >use a heated dryer for that because it will take on the gloss from its >hard chromed surface. That will interfere with the scanning. > >Yeah, I'm an old fart of 82 now, but I helped in the darkroom at my >local >weekly fishwrap since about 1947, and had my owm chemical darkroom, >B&W >and Color printing, for nearly 35 years starting in the late '60's. So >I >know a wee bit about this. And while I have never done this, I'd sure >take one you could waste and see if this proceedure would help >mitigate >the effects of the aging. Locating the chemistry supply in 2017 will >take a determined search. >Cheers, Gene Heskett
This discussion would probably be helpful in different circumstances but won't help with the ones I am faced with. I really want help with the scans so I did not give other details that should show that any further processing of these prints in not possible. I am actually working with photographs that are mounted into an album, not separate prints. This album is the "old style" with black paper pages onto which the photos were glued. Doing anything to re-wet would most likely destroy this album which should obviously be out of the question. Another aspect that I did not mention in my original post is that each of these pages has hand written captions next to each photo. Again, any wetting would probably destroy these which is also not acceptable. For others who may read this, again, I need help on how to work with the current scans I have. I am also not willing to do any re-scanning since some of the captions seem to be deteriorating and I don't want to handle the pages any more that is absolutely necessary. Thanks. Paul -- paulhurm (via www.gimpusers.com/forums) _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
