The Canon EF 24-70mm f/2.8 L II USM is a top of the line professional grade wide angle zoom zoom that covers full frame sensors. lens for professionals. This lens covers an important focal range from moderatley wide angle at 24mm to the start of the telephoto range at 70mm. Engineering a lens up to demanding professional standards while covering this broad range is not an easy thing. The 24-70mm succeeds using a highly sophisticated all new optical design that includes two aspherical elements, one Super UD (Ultra Low Dispersion) element, and two UD elements as well as the latest in Canon coating advances to produce a lens with outstanding optical performance. The constant maximum aperture of f/2.8 allows the versatility to shoot in low light and allows for shallower depth of field. The 9 aperture blades are rounded for pleasing out of focus areas.
A ring type USM (Ultrasonic Focus Motor) system delivers extremely fast focus speeds quitely , while providing the option of instant manual focus override without the need to change any settings.
The physical construction continues Canon's commitment to top level quality design in the L Series . The lens features environmental sealing against dust and moisture as well as smudge and dust repelling flouring coatings on the outside lens elements. A zoom lock switch keeps the lens barrel retracted when stored on your shoulder or in your camera bag. It is a really nice all around workhorse lens good for professionals and serious enthusiasts.
Accessories include the EW-88C Lens Hood and LP1219 Soft Case.
Meeting the ever-increasing demands on image quality that digital photography brings, the redesigned EF 24-70mm f/2.8L II USM is the latest update to the acclaimed L-Series of EF optics, re-establishing a new standard for superb optics, high-end durable construction and performance in professional zoom lenses. A standard focal length zoom lens, it features a large aperture throughout its focal length. Featuring the latest advances in optical lens design, it utilizes 1 Super UD lens element and 2 UD lens elements that help minimize chromatic aberration in the periphery at wide-angle as well as reduced color blurring around the edges of the subject. In addition, 2 types of aspherical lenses are combined to help reduce spherical aberration over the entire image area as well as through the full zoom range. Optimized lens coatings also help ensure exceptional color balance while minimizing ghosting. The lens is also equipped with a circular 9-blade diaphragm for beautiful, soft backgrounds. A ring-type USM and high-speed CPU with optimized AF algorithms enable silent and fast autofocusing. Built for the rigors of professional use as well as to meet the increased number of shots available with digital photography, it's constructed with improved dust sealing and water resistance while fluorine coatings on the front and rear lens surfaces help reduce soiling, smears and fingerprints. A zoom lock lever locks the zoom position at the wide end for safe transporting while attached to an EOS DSLR camera over the shoulder.