The EF 24-70mm f4L IS USM is the perfect zoom to complement full-frame DSLRs like the EOS 6D. With 2 aspheric and 2 UD elements, the EF 24-70mm f4L IS USM delivers high- quality images with excellent detail throughout the entire zoom range. This Lens is perfect for everyone from landscape, and travel shooters, to portrait and wedding photographers.
A 9-blade circular diaphragm delivers beautiful, 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. Compact and lightweight, it’s the perfect L-series lens for photographers on the go.
Ring-type USM (Ultra Sonic Motor)
Ring-type motors are highly efficient and feature a low power consumption to extend the camera battery life. Being ring-shaped, they are ideally suited to the shape of the lens barrel, their focusing speed is very controlled and they are stable across a wide range of temperatures, from -30°c to 60°c. They enable quick and silent auto focus of Canon Lenses.
L-series lenses meet the requirements, and needs of professionals. Canon uses three technologies in its L-series lenses to produce the sharpest, clearest pictures: fluorite elements, aspherical elements and UD optical glass elements. To make sure you can easily identify these luxury lenses, Canon marks them with a red ring around the lens barrel. If it does not have this red ring, it is not part of the L-series lens range.
Built to Last
Optical performance is only half the story. A lens destined for professional use must be able to withstand the rigours of a professional photographer’s working life. This means a rugged build quality that will endure the knocks of everyday use, and weather sealing to protect against every type of adverse conditions. Accordingly, the L-series lenses feature liberal use of rubber sealing at interface areas, such as the lens-to-camera junction, external switches, and around zoom and focus rings to prevent water getting in and destroying the lens’ electronics.
Low Light Limits
Professional photographers are often forced to shoot in less than ideal lighting conditions. Sometimes this can mean in low light or even at night. The L-series offers wider maximum apertures than other lenses.