> >My Sigma lens requires a correction of -18 IIRC to attain >sharp focus. Would you like to me to set -18 as a default >value, and then dial in -18 (or whatever) for the Sigma, and >let you know the results? >
Bob, if it wouldn't be too much trouble, that would be great. It might be more helpful for the OP to try it since he is the one with the problem. Although, that really isn't the OP's solution, just a get around.