Digital BW, The Print

Roger <user1@...> wrote:
>
> ... I don't think there is an equivalent in the digital world. 

I don't think the digital sensors have the "threshold" to overcome that 
was, apparently, what was behind the pre-flashing effectiveness in film.

Some of us experimented briefly with filters to, in effect, "partition" 
the RGB sensor.  See near the bottom of the page at 
http://www.paulroark.com/BW-Info/ 

I didn't do much follow-up on this, but the use of filters with digital 
cameras is still an area that intrigues me.  In addition to the 
possibility of extending the dynamic range, I wonder about possible 
effects on sharpness, perhaps by dealing with the color fringing.

Paul
www.PaulRoark.com 



> > 
> >  >
> >  > (Is there a digital equivalent to the 1 - 2% 
> >  > pre-flashing of slide film we used to 
> >  > occasionally do to increase the deep shadow sensitity?)