Overview Offering superb optical performance and high-resolution results, the M.Zuiko Digital ED 12-40mm f/2.8 PRO II from OM SYSTEM gives you exceptional image quality anywhere you go. Compact and lightweight for maximum portability, this wide-to-portrait-length zoom is a 24-80mm equivalent lens for Micro Four Thirds mirrorless cameras. Its advanced optical design includes a variety of sophisticated elements that reduce both chromatic and spherical aberrations throughout the zoom range for notable clarity, sharpness, and color accuracy. Additionally, a ZERO lens coating improves contrast when working in strong lighting conditions. The lens features a high-speed movie & still compatible autofocus system for fast, smooth, and silent focusing performance, and with a minimum focusing distance of just 7.9" you can get close-up shots whenever you desire. Safeguarding the lens is a reliable weather-sealed design to ensure the lens' performance in inclement and harsh conditions, and a fluorine lens coating provides additional protection from dust, water droplets, grease, and dirt.