Digital BW, The Print

On 3/25/05 2:54 PM, "steve_bye" sent the following verbage:

> Maybe the issue is the definition of contrast. The dynamic range does not
> change since Dmax and Dmin stay the same. But the "stretching or bunching
> either end of the tonal range" causes the stretched range to have higher
> contrast and the bunched range to have lower contrast. Contrast is the slope
> of the curve.

I just can't visualize a contrast change when adjusting gamma, in PS, or in
a print driver control panel. Contrast to my eyes is achieved when you are
manipulating the relation between the high and low values, not the midpoint
adjustment. When adjusting the gamma via a curve adjustment I don't see a
contrast relation unless you are also putting points down in highs and low
values adjusting that as well.

Anyway, I like that, the definition of contrast. Thanks... And I'm rambling.
C