Quote Originally Posted by Tom Duffy
I'm always very surprised at how much fuzzier my 8x10 negs look through a magnifier than my 5x7's.
Tom
Your 8x10 negatives should be no less sharp than your 5x7s. Indeed, my 11x14 negatives are tack sharp unless the fuzzy fairies are at work. Camera movement (a given for 11x14s), poor holder placement, poor registration of the ground glass, or a poorly mounted lens may affect the quality of the larger negatives.

Once you trace the culprit you'll find, like the rest of us, that size matters.