Quote Originally Posted by Peter De Smidt View Post
I shot some Rollei 4x5 Ir recently with a Hoya r72 filster. I needed to rate the film at ei 1, or even less, to get any shadow detail using Pyrocat HD. I'm not complaining, but simply pointing out that it's EI might not be close to 25 in similar circumstances.
I shot this film rated at 12 (also use hoya r72), developed in pyrocat HD 1:1:100 for 15 min at 20C. Agitate first minute, after that 3 inversions each minute. I'm not satisfied completely, i think it must be somewhat shorter next time. Te negs are a little to dense.

result: