This version II of the popular Canon 24-105mm lens makes improvements to image quality through the use of a new optical design with four glass-molded aspherical elements which helps to limit vignetting in your images. Also, it users an Air Sphere Coating to reduce ghosting and flaring.
A ring-type Ultrasonic Motor AF system provides fast and accurate autofocus while built-in optical image stabilization can help compensate for about 4 stops of shutter speed, minimizing the effects of camera shake. This lens also offers a zoom lock switch to prevent lens creep when not actively in use as well as an internal focus system. Full-time manual focus override is available for making adjustments regardless of the AF mode. Additionally, it has a rounded 10-blade aperture diaphragm for smooth out of focus elements.