Number of Silver Halide Crystals vs Film Speed.

You've just found the exact point that PE has been trying to make:

AgX said:

“The process of development goes through until all AgBr of a grain is reduced, as long as we do not stop the process before.”

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Pictorial negatives are seldom, if ever, developed to completion. As PE stated, to do so would result in litho like results, and then fog.

Ed

Ed;

Thank you, thank you, thank you. This is exactly my point.

PE

Ed, PE, I just came back to this thread…

In the meantime I looked through all my photoscience textbooks and even approached a research photo-chemist. In my basic statement I was right; however, as you stated, I learned that in pictorial processes the development is stopped before the majority of crystals is developed to completion, due to reasons you stated above.