The EF 35mm f/2.0 IS USM Standard Prime Lens from Canon adds optical Image Stabilization (IS) to a rear focusing system and ring-type Ultra Sonic Motor (USM) for not only quick and quiet autofocus, but steadier shots in low-light conditions. Optimized lens coatings help ensure exceptional color balance while minimizing ghosting, and full-time access to manual focus is provided while in autofocus (AF) mode allowing you to quickly switch between the two as you need them.
The lens' ring-type Ultra Sonic Motor (USM), rear focusing system, and high-speed CPU--with optimized AF algorithms--ensure that you experience quick, quiet and precise autofocusing whenever you need it. Its circular eight bladed diaphragm gives pleasing, soft background effects, and a Glass Molded (GMo) aspherical lens element ensures you'll have higher image quality and performance out to the edges of the frame.
Adjust focus using either autofocus (AF), or full-time manual focus, without having to switch modes or change camera settings. To enhance accurate and sharp focus this lens has optical Image Stabilization (IS) built-in which detects normal shooting or panning, and automatically switches to the optimal stabilization mode for each type. It also allows for shooting in darker environments, and lowering shutter speeds up to four stops, than you otherwise could get without IS.