Archived posting to the Leica Users Group, 1998/04/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 10:48 AM 4/14/98 -0400, you wrote: >HELP! Sorry to yell, but I have a big problem. I developed about 12 rolls of >Tri-x in divided D-76. The developer must have been too old and lost activity. >( haven't we all?) The negatives are quite thin and flat. My question is can >they be intensified? I've never tried and don't know anything about the >different processes, except for a little I got from some limited reading. Do >intensifiers really work? Is the print quality affected? If anyone out there >has any experience doing this, I would appreciate hearing from them. A number >of these images are very important to me and I am willing to try anything. TIA > > Richard W > Richard: Kodak used to make a Chromium Intensifier which worked great, but I believe it was discontinued because of environmental problems. If you want to make your own the formula from "The Darkroom Cookbook" is: Potassium dichromate, 10% solution 12.5 ml Hydrocholoric Acid, concentrated .3 ml Water to make 100 ml Negatives to be intensified should first be hardened either in the fixer or as an after-treatment. Immerse the negatives in the bath until bleached. Wash negative until free from yellow stain, about 5 minutes, redevelop, after exposure to daylight , with a normal developer (not fine-grain) until the image has blackened completely. Fix, wash, and dry. If sufficient intensification is not achieved the process may be repeated. Hope this helps! Good luck - TIna ______________________________________________________________________ Tina Manley, ASMP <http://www.photogs.com/manley/index.html> <http://www.aperture-photo.com/site/reportage/manley/manleyframeset.html> <http://www.onlineartistleague.com/manleyt/portfoli.htm>