That seems like an awfully long time. How do the negatives print? Minimal agitation doesn't like overdevelopment. I use 1.5:1:175 for around 40 minutes at 70°F with a normal negative. I agitate vigorously and continuously for the 1st minute and then for 10 seconds halfway through development. They can look pretty thin and still print beautifully because there's so much stain.
Originally Posted by jstraw