i wanna ask, if anyone ever tried this glass with the CANON 1.4III or with the KENKO PRO 300 DGX 2X.
i own both: i'm considering getting a 70-200, so if the tammy it's ok with that ones, could be a plus!!
is the canon fitting, or the protruding element is too long? AF is dramatically slowered?
any direct experience, comments, would be appreciated