Delivering high-quality images with excellent detail, the EF 24-70mm f/4.0L IS USM Standard Zoom Lens is optimized for full-frame 35mm sensors, and is another entry into Canon's high quality L-series of lenses. The ring-type Ultra Sonic Motor (USM) and high-speed CPU ensure quick, quiet and precise autofocusing whenever needed. Two Super Ultra-low Dispersion (Super UD) and two standard UD lens elements working together to minimize chromatic aberrations, and reduce color blurring around the edges of your subject, and the circular nine-bladed diaphragm delivers beautiful, soft background effects.
Durable, compact, and lightweight, the EF 24-70mm f/4L IS USM is sealed for excellent dust and water resistance to protect it from damage outdoors, while fluorine coatings on the front and rear lens surfaces resist fingerprints and smearing. In addition, a zoom lock lever holds the zoom position at the 24mm wide end for safe transporting while attached to an EOS DSLR camera over the shoulder - perfect for any traveling photographer.