The M.ZUIKO PRO series of professional lenses have excellent optical performance and dust-proof and drip-proof structure, which is the culmination of Olympus lenses. M.Zuiko Digital ED 12-45mm F4.0 PRO standard zoom lens M.ZUIKO PRO is the newest member of the family, is also the world's most compact and lightest [*] constant aperture standard zoom lens. This lens has excellent resolution in the entire zoom range, and even from the center to the edge of the frame, thanks to Olympus’ uncompromising commitment to optical design, coupled with the high mobility brought by the 254g net weight. It fully demonstrates the unique appeal of the Micro 4/3 system.