Digital BW, The Print

Exactly right.  You've lost some of the 256 levels, and the blank spots in
the histogram indicate possible posterization.

STEPHEN    JENNINGS
    P h o t o g r a p h e r
       Cambridge, MA
sgjennin@...

>> What happens when you make tonal adjustments with 8 bits is
> >you loose tonal values.
> 
> 
> Would these tones "moving around" and getting shifted be
> responsible for a histogram that had holes in it? (Not that I've
> ever had one, but a friend of a friend told me that *they* had
> some missing areas in *their* histograms...
>