Quote Originally Posted by Michael R 1974 View Post
I guess there isn't really a way to isolate signal density from whatever the chemical base fog density is at any exposure level anyway.
From the perspective of sensitometry I would say there isn't a reason, even if there were a way. The sensitometry curves tell you exactly what you need to know about the film and development to make a negative tailored to make a print (well, except for the lens fog).