Digital BW, The Print

Hi Anthony,

> > There are MORE tonal gradations (as in it has a higher
> > dynamic range) on negative film than there are on slide
> > film, it's just a property of the type of film and how
> > it responds to light.
>
> If you divide the change in density per change in exposure, you get the
> tonal resolution.  Slide film changes a lot more in density for small
> changes in exposure, so it shows better tonality in the midrange of
> exposures.

It's dynamic range that determines the number of tones, not the density
range.  You can have a density range of .2-4, and have few discernable tones
(like when using a graphics film), but you can have a density range of .4 -
2.6 and have discernable tones of, say 4000 tones, vs a density range of
.2 - 3.2 with discernable tones of only 1000.

Unfortunately, this will open up the density range vs dynamic range
discussion, which I have neither the time, nor the energy to discuss right
now.

Regards,

Austin