acars1971
Hi there!
I’ve come across some black-and-white negatives that are about thirty years old and were developed in a professional lab back in the 1970s. Today, these negatives have a silvery sheen on the emulsion side in the areas where the emulsion has deteriorated.
Before I start making prints from these negatives, I’d like to know what to make of this.
- What chemical reaction is causing this sheen?
- Should the negatives be treated to stop a chemical reaction or deterioration?
- If so, what measures are necessary?
These are 120 film strips from Agfa and Ilford. For the vast majority of the time, they were stored partly in rolls and partly cut into strips between sheets of paper, but in both cases in the dark.
Thanks in advance,
Best regards,
Christian
Gast
The negatives are actually still too fresh for silver leaching.
I’d try soaking a streak in fixer concentrate (!). It might well take over five minutes, but the negative should then look as good as new.
Regards
wm
