[pure-silver] Re: Shoulder and highlight

I think your assumptions are reasonable, but I don't see how this explains
that the mid-tone characteristics of a film are related to its highlight
characteristics...

> due to a fundamental principle of calculus of continuous functions

Where did you get that from?

As far as I understand, films are often coated with different emulsions to
'model' toe, mid-tone and highlight behavior individually, which would also
explains the 'hump' in some films and developers.

Maybe, I misunderstood what you meant?


Regards



Ralph W. Lambrecht




On 1/1/05 2:09 AM, "Ryuji Suzuki" <rs@xxxxxxxxxxxxxxx> wrote:

> I'm talking about the case where paper and
> average gradient are fixed. I'm also assuming sensitometry of both
> film and paper are monotone non-decreasing functions. These are all
> reasonable assumptions.

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