I'm new to this so bear with me please. I bought a Tech III in good condition w/ Schneider 150mm. First batch of sheet film was NPS. Exposures ran from 1/20 to 1/200 at f 16 - f 32. All shot outdoors in good sunlight. I metered w/ my Nikon 6006. All exposures came out very red. L ab assumed I had used a red filter but I hadn't. Film was brand new from B & H. I had kept the film in the freezer for a week before using it. Does NPS turn red if exposures are too long? What is effect of reciprocity on NPS? Anyone have an y ideas?
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