The EF 70-300mm f/4-5.6 IS II USM Lens from Canon is a flexible zoom lens, well-suited for a variety of subjects ranging from portraiture to wildlife. The lens utilizes NANO USM technology that combines a fast, stills-optimized ring-type Ultrasonic Motor and a smooth, silent video-optimized Stepping Motor for all-around focusing performance to benefit multimedia image-makers. Telephoto zoom designed for full-frame Canon EF-mount DSLRs, this lens is also suitable for use with APS-C models where it provides a 112-480mm equivalent focal length range. Additionally, also aiding both photo and movie recording, an Image Stabilizer system compensates for up to four stops of camera shake for sharper handheld shooting when working with slower shutter speeds. A circular nine-blade diaphragm contributes to a pleasing bokeh quality produces a pleasing bokeh quality for shallow depth of field imagery when working with selective focus and shallow depth of field techniques.