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filmscanners: Getting 15 stops or latitude out of B&W negative film?
Someone has made a claim that he can get 15 stops of latitude out of B&W
negative film. Specifically TMax 100. Here's my understanding:
Since stops are either 1/2 the amount of light, or 2x the amount of light,
15 stops would be 2**15, or 32768:1, which is a dynamic range of 4.5. My
experience has been the best one can get out of B&W film is around 7/8
stops, which is a dynamic range of 2.1/2.4.
Thoughts? Anything wrong with my arithmetic?