Query: Increase of Developer Activity
Posted: Sat Aug 12, 2006 4:31 am
I think it's a well known fact that ID11 increases its activity on standing for a long time without being used, but I think I have the same effect with a batch of Crawley Formula FX4 I made up to the formula. A fresh FP4+ I did at 1+ 1 dilution came out over developed, then I have done an outdated (1995) Kodak TMax 100 rollfim for 81/2 mins at 20oC and THAT came out over as well; I didn't give any extra exposure due to age of the film as I do with outdated 400 ASA types as I find it maintains its spreed, but the negs were dense. Have any of you had experience of this activity increase? Thanks........Peter.