Digital BW, The Print

I can recall some sage advice that one should produce negatives the 
printer will not have untoward difficulties with. Since the printer 
in my case was me, I took this to heart. My favorite to print, using 
an enlarger, was certainly 4 X 5, but a close second was negatives 
from the big Pentax 6 X 7 SLR using 120 - 220 roll film. It was 
awkward, heavy and took some time to refine technique since there 
was a big clunk when the mirror flipped up but the lenses were 
generally very good and the resulting negatives were usually a joy 
to print. 35mm on the other hand, to my view, is the format from 
hell so far as printing is concerned. I also had a 645 Pentax but 
the negs were not all that much easier to print than from a 35mm. It 
seems sort of like the mantra one used to hear from the hotrod crowd 
concerning engine power "There ain't no substitute for cubic inches."

Most of my professional use was 35mm in biomedical work but the last 
few years I dropped using film cameras almost entirely, particularly 
for photomicrography, and used digital almost exclusively. 

Roger