Versatile yet simple, the black M.Zuiko Digital 25mm f/1.8 II Lens from OM System is an IPX1-rated 50mm equivalent prime for Micro Four Thirds mirrorless cameras. Its normal field of view is complemented by a fast f/1.8 maximum aperture for controlling depth of field and producing selective focus effects, and it also benefits working in difficult lighting conditions. Two aspherical elements with ZERO coating are used in the optical design to help reduce spherical aberrations in order to achieve a high degree of sharpness, and these elements also help to reduce the overall size and weight of the lens. Additionally, a Movie and Still Compatible (MSC) autofocus system is employed to deliver quick, quiet, and precise focusing performance to suit both video and photo applications.