Canon EF 70-300mm f/4-5.6L is USM UD Telephoto Zoom Lens for Canon EOS SLR Cameras

Ultra-high quality and lightning fast Canon L series lens Optical Image Stabilization System increases usability by approximately four stops The lens features a function that prevents erroneous operation when the lens is mounted on a tripod or monopod The EF 70-300 f/4-5.6L IS USM incorporates a floating focusing mechanism for sharpness from 3.9' (1.2m) to infinity Two Ultra Low Dispersion (UD) elements for improved image quality and reduced chromatic aberration The lens accepts an optional removable tripod collar, and is dust and water resistant The Fluorine coating keeps soiling, smears and fingerprints to a minimum