The Olympus Zuiko 40-150mm f4.0-5.6 Digital ED Lens is extremely light, weighing only 6.7 ounces. With a wide zoom range with a 35mm equivalent to 80-300mm, this lens offers versatility and portability. It's an affordable complement to the powerfully simple 3x wide-angle zoom lens that comes standard with the PEN kit. The M.ZUIKO 40-150mm has two lens elements in the rear focusing mechanism. The focusing mechanism is designed to deliver quiet and precise operation, for an affordable, high quality means to capture your life in still images or HD videos.