Michael_K
Yesterday I tried developing the Fomapan 100 R SW transparency film.
I took a few test shots and prepared the chemicals. I still had some old chemicals, certainly over three years old, from the last time I successfully developed black-and-white transparencies.
Everything seemed to go smoothly; when I took the spiral out of my Paterson tank, I could see the exposed photos. I exposed the film with a 150-watt lamp (as I did three years ago) and developed the film a second time. When I emptied the developing solution from the tank, it was completely brown. I fixed the film and when I opened the tank, the film was empty. The emulsion had completely dissolved; the film was completely clear.
I thought perhaps it was the old chemicals.
I repeated the whole process with new chemicals, but unfortunately the result was the same.
The transparency used for the test has an expiry date of 2009; the chemicals used in the second attempt are already several years old; however, they were unused and sealed. Is it possible that modern films are subjected to chemical exposure a second time, and that this is the cause?
I rinsed rather briefly, although the water temperature was probably just under 20 degrees. I did not use distilled water.
I used the chemicals immediately after preparing them.
I have 8 films waiting for development and would appreciate some help. Thank you.
