Panasonic Leica DG Vario-Elmarit 50-200mm f/2.8-4 ASPH. POWER O.I.S. LensA flexible optic ideal for wildlife, outdoor, and nature photography, the Leica DG Vario Elmarit 50 200mm f 2. 8 4 ASPH. POWER O. I. S. Lens from Panasonic is a 100 400mm equivalent zoom designed in collaboration with Leica for Micro Four Thirds cameras. The long reach is complemented by a bright f 2. 8 4 maximum aperture range, which benefits working in low light conditions and also affords control over depth of field for isolating subjects. The