Panasonic LUMIX Mirror less Micro Four Thirds lenses deliver a no-compromise approach to optical performance for modern interchangeable camera enthusiasts. This 100-300mm F4.0-5.6 classic enhanced lens has been updated for the outdoors with a splash proof and dustproof design (when mounted on a compatible LUMIX G Mirror less camera). Now featuring Power O.I.S. optical image stabilization compatibility with 5-Axis Dual I.S. 2.0 (Image Stabilization) you'll shoot with unprecedented hand-held stability. Make the switch from bulky DSLRs to the smaller, lighter, more compact Mirror less Micro Four Thirds system cameras and lenses from Panasonic LUMIX. (200-600mm 35mm Camera Lens Equivalent).