I've been given some interesting things to consider. My assumption was that large format lenses would give sharper images since that's the value of larger formats. I hadn't thought that the size of negative was giving all (most?) of the benefit. Now that I've heard it, it makes good sense. How are "resolving figures" represented? Is there some standard unit of measure for sharpness? I've heard of circle of confusion, but was confused by it. Perhaps I need to take the time to understand it. Thank You, Tim Corio On Sun, 2007-04-15 at 12:28 +0800, karl shah-jenner wrote: > If you want to confirm this look up the resolving figures for various > lenses - Robert Monaghan has a wealth of data on lenses.