Bill - I don't guess at anything. I do tests and tests upon tests - but normally only on problems which affect me personally. I'm not interested in argument for argument's sake. Having done many
years of large format printing onto high-resolution materials like Cibachrome I have had the opportunity to isolate and fine-tune a lot of variables, and am simply making this info avail to others
from time to time, to save them similar heaches. When I speak of using a loupe, it's not just for the
groundglass or film. I want you to be able to walk up to a 30x40 print, spot a water drop a mm wide
on the actual print, and take a loupe to that!! Of course, not every original chrome or neg will be
that sharp to begin with, but sometimes they are, at least in key areas.