I have a really basic question:
Some lenses only cover 4x5 at a larger f-stop, i.e. my newly purchased 55mm Apo-Grandagon has an image circle of 163mm at f/11. Obviously, shooting at f/16 or f/22 will not increase the image circle or affect the light falloff on the edges in any way.
The working f-stop according to the documentation is f/8-11, which is smaller than what I usually use with regular lenses. I'm guessing the lens is sharpest at f/8-11. I want to get the sharpest possible images, but I'm worried that shooting at f/8 or f/11 will not give me enough depth of field. Is the DOF visually the same at f/11 on a 55mm lens as, for example, a regular 180mm lens at f/22? This might be a stupid question, but I'm actually very curious whether DOF is somewhat different with very wide lenses, as the widest I've shot so far is 72.
(note: I haven't done any shooting yet, I'm still waiting for a recessed lensboard to get here.)