The Canon EF-S 10-18mm f/4.5-5.6 IS STM is a high-performance, ultra-wide angle lens that is perfect for APS-C sensor cameras. This lens features a 4 group optical zoom system and includes large-diameter and aspherical lens elements, along with enhanced lens coatings, for outstanding image quality with minimal glare and aberration. The circular 7-blade aperture helps create beautiful background blur, while the Canon Optical Image Stabilizer system provides up to four stops of shake correction. This lens also features a stepping motor (STM) for smooth, continuous AF during video recording, plus a rear focusing system and high speed CPU for improved AF performance.