Does someone have experience in printing Pyro negatives with Centennial POP ? My experience says that a pyro negative perfectely matched for platinum does not have enough contrast for POP , unless if I print it with a low level light source for very long times (12hrs to 24 hrs) to increase contrast. I can not quantify the pyro negatives contrast because I do not own a colour densitometer.
The idea is to produce PYRO negatives for silver printing with VC paper , Pt/Pd and POP.
Manuel Punctum Studios Portugal EU