Olympus M.Zuiko Digital ED 12-45mm f/4 PRO Lens

Short Description Micro Four Thirds System24-90mm (35mm Equivalent)Aperture Range: f/4 to f/221 DSA Element, 2 Aspherical Elements2 HR, 1 Super HR, and 2 ED ElementsZERO Lens CoatingMSC Autofocus SystemWeather-Resistant ConstructionRounded 7-Blade Diaphragm   In The Box Olympus M.Zuiko Digital ED 12-45mm f/4 PRO Lens   Long Description Covering a useful and familiar range with a svelte form factor, the Olympus M.Zuiko Digital ED 12-45mm f/4 PRO is a 24-90mm-equivalent zoom for Micro Four Thirds mirrorless cameras. Distinguished by its f/4 constant maximum aperture, this lens strikes a balance between a bright design and a highly compact design to suit its use in everyday situations. Myriad specialized elements are incorporated into the optical design, which help to suppress spherical aberrations, color fringing, and distortion in order to produce sharp, color-accurate imagery. A ZERO coating is also featured, which controls flare and ghosting for improved contras