The Canon EF 70-300 mm f/4-5.6 IS II USM Lens is a versatile equipment that can be used for a range of photography situations, including portrait and wildlife. It features the NANO USM autofocus system that utilizes the Stepping Motor and a ring-type Ultrasonic Motor mechanism to get a quick, accurate, smooth, and near-silent focus to suit video and photography applications. The Optical Image Stabilizer compensates for up to 4 stops of camera shakes in order to perform sharp, hand-held shooting, even while working in tough lighting conditions and with slower shutter speeds. Furthermore, the circular 9-blade diaphragm offers a pleasing bokeh effect while working with selective focus and shallow field-depth methods.