This wide-angle 7-14mm zoom lens offers a 14-28mm equivalent focal length range for Micro Four Thirds digital cameras. Constant f/2.8 maximum aperture maintains consistent performance throughout the zoom range and benefits working in difficult lighting situations. A versatile wide-angle zoom for Micro Four Thirds mirrorless cameras, the M.ZUIKO Digital ED 7-14mm f/2.8 PRO Lens from Olympus is a 14-28mm equivalent lens featuring a constant f/2.8 maximum aperture for consistent performance throughout the zoom range. Various aspherical, extra-low dispersion, and high-refractive index elements are incorporated within the design, and help to minimize chromatic aberrations and distortions for increased clarity and sharpness. Additionally, a ZERO coating has been applied to elements to control flare and ghosting for improved contrast and color fidelity. A weather-resistant design benefits handling in trying conditions while an L-Fn button offers lens-based control over various settings. As a fast, high-performance wide-angle zoom, this Micro Four Thirds lens pairs an optimized optical layout with refined physical details to excel in a variety of working conditions. Complementing the imaging traits is a high-speed imager AF system that provides fast, smooth, and quiet focusing and the Movie and Still Image Compatible (MSC) designation also indicates this lens' suitability for use with fast-moving subjects and video applications. A manual focus mechanism can also be utilized for selective control over focus, which is accented by a rounded seven-blade diaphragm for more aesthetic out-of-focus regions.