Not sure if this has been done but when I searched I kinda came up empty handed. I think it might be a good idea to have a stick thread with optimal apertures for lens sharpness, falloff, as well as whether or not the lens is sharp in the center wide open. I know sharpness is sometimes considered opinion but have a consensus on certain lenses would still be useful I think. I tend to try and shoot my lenses where they are considered to be the sharpest and would like to have one place where I can go to get the best information on that. That is, instead of scouring the image sample threads to catch a glimpse of discussion on the best apertures for sharpness at center and edge to edge. What do you guys think?