A professional-quality standard zoom offers superlative image quality and a fast f/2.8 maximum aperture throughout its zoom range. It is perfect companion to any full-frame EOS camera. The EF 24-70 mm f/2.8L II USM delivers superb image quality throughout its zoom range, thanks to aspherical lens elements and ultra-low dispersion (UD) and super UD glass. Redesigned optics ensures sharpness is maximized across the frame. A fast f/2.8 maximum aperture is maintained throughout the zoom range, enabling hand-held low-light shooting in a variety of situations. The EF 24-70 mm f/2.8L II USM is robust enough for daily professional use. Weather sealing protects against dust and moisture, while a fluorine-coated front and rear elements are easy to clean.