Like the Olympus OM-D E-M1, the new Olympus M.ZUIKO DIGITAL ED 40-150mm 1:2.8 PRO (80-300mm 35mm equivalent) zoom lens is dust, splash and freezeproof - standout in the pro class. Too long, too big and too heavy is the professional verdict on the DSLR competition, so Olympus made this lens more compact and lighter than