Quote Originally Posted by Michael R 1974 View Post
Probably a little of both (concerns all "super-speed" films). My understanding is in the case of say Delta 3200 and TMax 3200 these are not ISO speeds.
Great example on how understanding theory is beneficial to understanding the process. Nowhere does it say ISO with these films, which means they haven't been tested according to the ISO standards. The "P" in P3200 stands for process.