Nick_C wrote in post #5809992
Remember guys & girls & whoever
Always ALWAYS try & post samples with 100% crops as well, posting rescaled images is fine for checking out contrast & colour, along with viewing the entire scene, BUT we arnt interested in the photo itself but the lens, so we really need to see the level of sharpness & to check for abberations, this cant be dont with a full frame resized image, we NEED 100% crops..
And not just that, we need those 100% crops to be from both the center of the frame and, if the shot's taken with a full-frame caerma, from the edges/corners (edges/corners from a crop camera won't mean all that much since the lens is designed to be used on a full-frame camera).
Ideally, someone with a 1DsmkIII will put this lens on it, put it into live view mode, and zoom into an edge or corner and manually focus on that spot until it's as sharp as possible, then take the shot wide open and show the results. That'll show what the lens is capable of in the edges/corners.
Live view might not be very useful for a lot of people, but it's a lens tester's dream.