Digital BW, The Print

Several years ago I looked at creating direct mail peices of my 
B&W work. I investigated multiple press passes through Black 
ink. But multiple black is more than just repeating the black run 
to lay down more black on top of the previous black. A second or 
third separation is created with a different screen angle. The 
idea is to get better resolution and use finer dot sizes. Thus 
more shades are available which translates into smoother 
transition zones and an apparent Dmax greater than what's 
possible with one black.


regards,

H. Gregory Porter
The Porter Gallery