The M.ZUIKO Digital ED 7-14mm f/2.8 PRO Lens from Olympus is a versatile wide angle zoom for Micro Four Thirds mirrorless cameras.
With a 14-28mm equivalent focal length and a constant f/2.8 maximum
aperture, it features aspherical, extra-low dispersion, and
high-refractive index elements to minimize chromatic aberrations and
distortions for increased clarity and sharpness. A ZERO coating has also
been applied to elements to control flare and ghosting.
The lens is weather-resistant, and uses a fast, smooth, and quiet
focusing high-speed imager AF system. The Movie and Still Image
Compatible (MSC) designation indicates this lens' suitability for use
with fast-moving subjects and video applications. There is also a manual
focus mechanism which can be used for selective focus control,
complimented by a rounded seven-blade diaphragm for pleasing out of
focus areas.