Adorama's product description:
The Canon EOS 24-70mm f/4L IS USM is designed for full-frame DSLRs like the Canon EOS 6D. With 2 aspheric and 2 UD elements, the EF 24-70mm f/4L IS USM is said to deliver high- quality images with excellent detail throughout the entire zoom range. A 9-blade circular diaphragm should produce pleasingly soft backgrounds. It offers a minimum focusing distance of 1.25 ft./0.38m across the entire zoom range and has a macro mode at the telephoto end with up to 0.7x magnification (minimum focusing distance becomes 7.87 in./0.2m) and is easily accessible with a one-touch switch. It features a Hybrid IS system with up to 4 stops of stabilization, compensating for both angular and shift types of camera shake, delivering effective stabilization even in macro. Inner focusing and ring-type USM deliver, fast, quiet AF, and full-time manual focus is available for manual focusing even while in AF mode. The durable EF 24-70mm f/4L IS USM is sealed for excellent dust and water resistance plus has fluorine coating on the front and rear elements reducing smears and fingerprints.