Sorry Paul. I couldn't help taking the p*ss.(posted 8682 days ago)From fuji's curves, there is very little difference between Neopan1600 and Neopan400. In fact I couldn't see any difference in sensitivity. They both have toes that start at -3 lux seconds, and reach 1.5D at around the same exposure when developed in D76 to the same mean gamma.
The difference seems to be, basically, the label.