Olympus M.ZUIKO 40-150mm f/2.8 Interchangeable PRO Lens for Olympus/Panasonic Micro 4/3 Cameras Professional build quality minimum focusing distance of about 19 inches over the entire zoom range, Focal Length : 40 mm-150 mm Dust, splash and freezproof. Closest focusing distance-0.7m Dual Voice Coil Motor focusing mechanism, Snap focus manual focus ring Portable and lightweight design, Only 6.3 inches overall length