Panasonic LUMIX Mirrorless Micro Four Thirds lenses deliver a no-compromise approach to optical performance for modern interchangeable camera enthusiasts. As an optical partner of legendary LEICA Lenses, the LUMIX 100-400mm F4.0-6.3 Lens features the highest standards of detail and sharpness. Built for the outdoors, this lens features a splash and dustproof design when mounted on a compatible LUMIX G Mirrorless camera. With Dual I.S. (Image Stabilization) compatibility you'll shoot with unprecedented hand-held stability. Make the switch from bulky DSLRs to the smaller, lighter, more compact Mirrorless Micro Four Thirds system cameras and lenses from Panasonic LUMIX. (200-800mm 35mm Camera Lens Equivalent).