This is a Micro Four Thirds super telephoto lens for those long shots off in the distance, which you can magically bring nearer at a turn of the wrist. Extremely compact and lightweight it offers an equivalent range of 150-600mm on a 35mm film camera. This high-power also comes with a unique screw drive mechanism, which is especially quiet for shooting films and has a very fast auto-focus function (MSC) for taking rapid-fire still shots. High power 4x zoom lens for getting up extra close Extreme fast high-speed contrast AF Circular aperture diaphragm ZERO (Zuiko Extra-low Reflection Optical) coating for reduced reflection