Digital BW, The Print

Hello Djon,

>BO obviously does create more contrast in shadow details* than QTR,
>but "smart sharpen" of shadows (one of the Photoshop "smart sharpen"
>adjustments) in post-processing does cause QTR to approximate BO
>sharpness...a matter of tinkering. 

If you print a step wedge in BO and also with a typical QTR curve and
compare the ramps you'll see that the BO version holds off dropping
into the dark zones longer.  This I believe is the reason BO has
better shadow separation.  If you create a QTR BO curve that matches
that ramp I think you'll get equally good results.

Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm