But if you have a known film curve and a known paper curve, can't you can't you follow your subject through the tone reproduction diagrams with alternate placements? Or if you prefer the Dorst diagrams (the type Kodak used), same thing.
Sure, I'm not saying it can't be done.
I'm not trying to replace those objective tools with my subjective diagram. One thing I'm trying to illustrate is the concept of how various subject placement choices (or errors) on the negative might relate to the print.
Mark Barendt, Beaverton, OR
"We do not see things the way they are. We see things the way we are." Ana´s Nin