Digital BW, The Print

When I was doing my internegatives, I found the MTF to be a huge problem.  Even the best -- see the Apo-Rodagon D at the bottom of http://www.rodenstock-photo.com/mediabase/original/e_Rodenstock_Printing_CCD_43-62__8230.pdf -- has a fair loss.  At 1:1 your f8 diffraction limit is like f16.  So, you want to use these fairly wide open.  Then, particularly with a stepper setup, you'd be fighting light falloff.

The stepper idea is interesting, but I'd think you'd want a telephoto optic.  Looks like lots of work.

Paul
www.PaulRoark.com