The EF 85mm f/1.2L II USM Lens from Canon is a fast, medium telephoto lens that delivers superb optical performance. A maximum aperture of f/1.2 makes it the professional's choice for shooting without flash in low light conditions. The large aperture also provides fine control over depth of field for compelling portrait photography.Retaining the impressive optical performance and large aperture of its predecessor, this lens has been improved with a ring-type ultrasonic autofocus motor (USM), high-speed CPU and optimized algorithms to achieve fast, smooth and quiet autofocus. Manual focus override enables precise manual focus at any time, even in AF mode. The truly circular aperture creates a shallow depth-of-field that brings attention to the subject and blurs the background, which is ideal for portraits.The large maximum aperture of f/1.2 provides outstanding speed for shooting in low light conditions, without the need for flash.