On page 64 of Gordon Hutchings Book of Pyro, he describes target densities of 1.60 for a Zone 7 exposure using variable contrast paper. Steve Simmons has suggested a Zone 7 density of 1.35 which is a common target for non pyro negatives. That's a fairly large difference. My negatives look fairly dense. Others have suggested that pyro negatives should be relatively thin. I am using the blue channel on my Xrite 810 to determine my net densities. I'm using FP4 and PMK. My FB+F is .08. My Zone 1 density at EI125 is .20 less the .08 for a net density of .12 - well within Hutchings recommendation of .1 to .2 for Zone 1. My Zone 7 net density at 10min developing time is 1.58. Almost textbook stuff according to the Book of Pyro. It's just that the higher zones look so dense. I haven't really taken time to make prints using these EI and developing time. My thinking was that I would do the tests first. Can anyone offer any guidance as to what target I should be using?
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