I'm quoting from memory, so I might be wrong: 'The Film Developing Cookbook' states the real speed of Neopan 1600 seems to be around 650 :( I was looking for a traditional fast film, as I dislike more and more fast T grain films, and was greatly disappointed.(posted 8341 days ago)This being said, I developed a good deal of Neopan 1600 (35 mm) at the speed of 1600 with good results. Might be a keeper after all.
The massive Dev Chart gives for Neopan 1600 at 1600 in PMK (1+2+100 12 min at 20°C.