Canon EF 11-24mm Lens

A truly versatile wide-angle zoom featuring an advanced optical design and constant f/4
maximum aperture, the Canon EF 11-24mm f/4L USM Lens is a member of the esteemed L-
series of lenses designed for full-frame EOS DSLRs. One Super UD element and one UD element
offer a significant reduction in chromatic aberrations while four aspherical elements help to
minimize distortions throughout the zoom range and provide consistent edge-to-edge
sharpness and illumination. Both SWC and ASC coatings have been applied to the elements in
order to reduce lens flare and ghosting for increased contrast and color accuracy. Ideally suited
for landscape and architectural photography, this lens covers ultra-wide to wide-angle
perspectives and backs up its versatile zoom range with sophisticated optical components and
intuitive handling.
In regard to focusing performance, a ring-type Ultrasonic Motor offers fast, smooth, and near-
silent autofocus, which is further benefitted by full-time manual focus operation and an internal
focusing design.