Quote Originally Posted by Prof_Pixel View Post
I though that real world issues, like lens field flatness and fall-off, general lens quality issues and film plane flatness in its holder pretty much negated the size difference so that an 8x10 didn't actually capture 4 times more information.
Lens performance really isn't an issue, and hasn't been for a good long time. Film flatness and proper filmplane location are real issues. The rest is up to the photographer.
When I made my first few 8x10 negatives with a good lens, I spent hours peering at them through a low power dissecting microscope, just picking out different details and gloating over the fact that I had 80 sqare inches of this stuff.