INCREDIBLY SHARP: Two XA (extreme aspherical) and three ED glass elements strategically deployed in an advanced optical design for superb resolution, clarity and contrast 
 BEAUTIFULLY SMOOTH BACKGROUNDS: Circular 11-blade aperture for beautiful bokeh defocus effects 
 CAPTURE ALL THE DETAIL: Sony Nano AR Coating to eliminate flare and ghosting 
 FAST AND PRECISE: A high-power DDSSM (Direct Drive SSM) focus drive system provides the speed and precision required for both stills and video shooting 
 PROFESSIONAL ERGONOMICS: A sealed dust and moisture resistant design provides extra protection to ensure reliable operation in challenging environments