The Sony FE 20-70mm F4 G Sony E-mount – Photographic lens offers super wide-angle zoom range in a lightweight, compact body designed with the G series’ high image quality, AF performance and video operability. Two XD (Extreme Dynamic) linear motors ensure smooth, quiet and highly reliable focusing. The increased power enables a 60% increase in AF speed and double the tracking performance3 for fast and accurate tracking. Follow moving subjects even with continuous shooting at up to 30 fps and shoot smooth video with a high frame rate. Advanced technology reduces focus breathing and axial and focus shift when using zoom to minimize distractions. It also offers silent operation during video. All controls, such as focus lock buttons and dedicated focus, zoom, and aperture dials, offer convenient and versatile control for photos and videos. The focus selector makes it easy to switch instantly from MF to AF.