Spanning an impressive wide to telephoto range, the M.Zuiko Digital ED 12-100mm f/4 IS PRO Lens from Olympus is a 24-200mm equivalent zoom designed for Micro Four Thirds mirrorless cameras. Characterized by its f/4 constant maximum aperture, this lens offers consistent performance throughout the zoom range to suit both stills and video shooting. Its optical design incorporates a slew of low dispersion and aspherical elements in order to reduce both chromatic and spherical aberrations, and both a ZERO coating and a Z Coating Nano have been applied to greatly reduce lens flare and ghosting for improved contrast. Benefitting handling the expansive zoom range is five-axis Sync IS, which compensates for up to 6.5 stops of camera shake when paired with select OM-D or PEN camera bodies. A Movie & Stills Compatible (MSC) high-speed imager AF system provides quick, accurate, and quiet focusing performance well-suited to both photo and video applications, and a manual focus clutch permits fast changing to MF for more precise control. Additionally, a lens function button is featured on the side of the barrel for direct settings adjustment, and the lens also features a weather-sealed construction for use in trying environmental conditions.