The Olympus Zuiko MC 100mm f/2.8 is a fast short telephoto lens from the OM System lineup, featuring multi-coating and a bright f/2.8 maximum aperture. The MC designation indicates multi-coating applied to the optical elements for improved flare resistance and contrast over single-coated predecessors. On 35mm film, 100mm provides a flattering perspective for portraiture, with natural facial compression and comfortable subject distance. It sits between the 85mm and 135mm portrait focal lengths, offering a practical balance of working distance and subject compression well suited to both studio and location portrait work. Designed for the Olympus OM mount, compatible with all OM system film bodies. With an adapter, Zuiko lenses are also widely used on modern mirrorless cameras, where the r.