Characterized by its impressive range and reach, the Olympus M.Zuiko Digital ED 100-400mm f/5-6.3 IS is a 200-800mm-equivalent super-telephoto zoom for Micro Four Thirds mirrorless cameras. This length is complemented by an advanced optical design that incorporates a series of ED and HR elements to minimize various aberrations and a ZERO coating also helps to control flare and ghosting for improved contrast and color accuracy. This lens is also characterized by its optical image stabilization system that compensates for three stops of camera shake for sharper handheld shooting in difficult lighting conditions. A Movie & Still Compatible (MSC) autofocus system is also employed to realize quick and quiet focusing performance, and a focus limiter switch also helps to quicken focusing depending on the anticipated subject-to-camera range. The lens is also fitted with a removable rotating tripod collar for improved balance and support, and the lens is weather-sealed to guard against dust, moisture, and freezing temperatures to benefit working in harsh climates.