Buy PMK Pyro, The Book of Pyro and calibrate according to the Practical Zone System. I use FP4+ at EI 80 and developed around 7 to 9 minutes (30sec agitation to start, one inversion and back every 15 seconds), water rinse, TF-4 Fixer, used developer afterbath, 20 minute wash and Photoflo. Nigel Parry isn't really fine art. Its celebrity portrait commerical work. Yes, there is a difference.(posted 8343 days ago)