The Canon EF 24-70 f/4 L IS USM Lens - Great for full-frame Canon cameras and most shooting scenes with wide-angle coverage, extended focal length and constant f / 4.0 aperture independent of focal length. Its high-quality optics, coupled with a macro mode that delivers up to 0.7x magnification, optical image stabilization and an ultrasonic motor for fast and near-silent autofocus, make it an excellent choice for most scenes, from landscapes to portraits and documentary photography. The Image Stabilizer on the lens is equivalent to 4 stops of exposure, i.e. even in adverse shooting conditions, your shots will be sharp and clear. Image Stabilizer (IS) technology automatically detects panning shooting when the photographer follows a moving subject and disables stabilization in that direction. The Hybrid IS (Hybrid IS) detects angular and coaxial offsets when shooting in macro mode. Like other L lenses, the Canon EF 24-70 f / 4.0 L IS USM is dust and moisture resistant. A separate close-up position on the zoom ring provides a minimum focusing distance of 0.38m at any zoom position and a maximum zoom ratio of 0.7x life size. The optical design of the lens uses two types of aspherical lenses combined with ultra-low dispersion (UD) to effectively eliminate optical aberrations. And Super Spectra Coating provides reduced glare and increased contrast in all shooting conditions. A nine-bladed circular aperture aperture produces smooth bokeh to help emphasize foreground subjects.