A versatile wide-angle zoom for Micro Four Thirds mirrorless cameras, the M.Zuiko Digital ED 7-14mm f/2.8 PRO from Olympus is a 14-28mm equivalent lens featuring a constant f/2.8 maximum aperture for espandi...consistent performance throughout the zoom range. A suite of aspherical, extra-low dispersion, and high-refractive index elements are featured within the optical design, and help to minimize spherical and chromatic aberrations throughout the zoom range for increased clarity and sharpness.