Panasonic 14-50mm f/2.8-3.5 OIS Four Thirds Lens for Panasonic Digital SLR Cameras Aspherical Lenses: Two large-diameter aspherical lenses Multi-coated lens elements reduce ghosting and flare to an absolute minimum Enables the lens to deliver an optical performance that meets Leica's lofty standards Circular Aperture: 7-blade circular aperture diaphragm produces brilliant out-of-focus characteristics