Olympus Zuiko 50mm - 200mm f/2.8-3.5 E-ED Digital Zoom Lens for the E Digital SLR System.

Digital photography demands more than the traditional optical designs of film lenses. Photographers want to be able to shoot not only stopped down but with the aperture wide open and know they will get sharp, detailed edge-to-edge sharpness. The Olympus E-System and Zuiko Digital LensesTM are designed to meet the everyday needs of professional photographers. With digital specific lens designs and unrivaled optical elements, unsurpassed image quality is achievable in an interchangeable lens SLR system, no matter what aperture you choose. And an incredibly compact, lightweight design - based on the innovative Four Thirds System - provides you with the most versatile, high-performance interchangeable lens system you've ever experienced. A high-performance digital specific telephoto zoom lens that's one of the lightest and most compact in its class. This Zuiko Digital Lens includes 3 ED glass lens elements to correct chromatic aberrations and features a maximum aperture of f3.5. Like all Zuiko Digital Lenses, the barrel and all connections are designed using all-metal components and rubber seals make it highly resistant to dust and moisture. The 50-200mm zoom comes with a lens case, lens hood, removable tripod adaptor front and rear lens caps. The 50-200mm f2.8/3.5 Zuiko Digital Lens features 16 elements in 15 groups, including 3 aspherical glass elements to minimize aberration and ensure sharp and accurate edge-to-edge detail.