Digital BW, The Print

David,

Thanks for the answers.

re: setting the black/white points of the wtep-wedge:

Sorry I was unclear - No, I was just stating that as a reason why I 
couldn't set the white/black points of the step-wedge in my scanning 
software - it is brain dead. I CAN scan the step-wedges, but I was 
wondering if it was possible to set the white/black points once it's 
imported into Photoshop --or-- if they had to be set in the scanning 
software for this method to work effectively? 

Craig

> > 1) Can the black and white points be set in Photoshop instead of 
the 
> > scanner after the step-edge has been scanned? I work with a 
digital 
> > camera and my scanner is marginal and I don't think the black 
and 
> > white points can be set in the software.
> 
> Are you suggesting taking a digital photo of the step wedge 
instead of
> using the scanner?  In theory this should work okay.  The one 
obvious
> way to ruin it is to have the lighting uneven (since the point of 
the
> scan/image of the step wedge is to quantify the brightness
> differences).