The Panasonic LEICA DG VARIO-ELMAR 100-400mm f/4.0-6.3 ASPH Power O.I.S. is a brand new super telephoto lens for the Micro Four Thirds system of interchangeable lens cameras. Offering an effective focal range of 200-800mm in 35mm terms, the Panasonic 100-400mm lens somehow still weighs less than 1kg. Read our Panasonic 100-300mm F4.0-5.6 MEGA O.I.S. review to find out if it offers enough to entice avid bird, wildlife and sports photographers…
