This lens is a compact, lightweight EF-S standard zoom lens which includes necessary features developed for camera-based movie shooting. Quiet, smooth Movie Servo AF has been made possible by using a new type of 6-group inner focusing system. Use of a high-precision aspheric lens has also enabled higher image quality. This standard zoom lens is also equipped with Canon's Image Stabilization function, making it the equivalent of 4 shutter speed settings faster across its entire range. Lens disposition and coatings are optimized to minimize ghosting and flare.