I have been working on the scaling problem - what is the right size for prints and do you print differently as the print gets larger? I print digitally from scanned 4x5 negatives. Sharpening is clearly different for larger prints, and that is different from the wet world, but I suspect that issues of contrast and brightness and the like are the same for silver and ink. (As far as I remember, Ansel did not discuss scaling in this book on printing, although he did discuss how image choice would differ for a large image on something like a room divider. )

What is your experience? Are some images better large? Do you print them differently? I have the prejudice that LF format prints should be large, otherwise why bother carrying the equipment around? (I think my problem with contact prints must be that my eyes are not good enough to appreciate their magic directly and I do not take my magnifier to photo shows. )