I was really liking the Fujinon 19-90 Cabrio. When you hook up a Preston FIZ 3 to it the motors for focus, iris and zoom are built into the cabrio handle. Pretty slick. Also the zoom control for on the shoulder doc style work is very smooth and easy to achieve great zooms slow or fast. The Cabrio handle comes of with 4 bolts if you want to run it that way and loose another pound off the lens. Had a quick look at some of the Canon PL Primes. They looked pretty good too and full frame coverage.