This large aperture telephoto zoom is designed exclusively for digital SLR cameras. It is suitable for taking portraits. This lens offers a large aperture of F2.8 and has the minimum focusing distance of 100cm/39.4-inch and maximum magnification ratio of 1:5.3. It has improved optical performance and retains close-up ability. The lens design incorporates an inner focusing and inner zooming system, providing convenient handling. The HSM (Hyper Sonic Motor) system allows quiet and high-speed auto focusing with full time manual focus override by rotating the focusing ring.