CANON 16-35mm EF L II F2.8 Just Works Great.
Broaden your perspective with the CANON 16-35mm ultra-wide-angle zoom lens. Specifically designed for improved edge-to-edge image quality that meets the strict requirements of professional and high-end amateur photographers alike, the lens lets you bring more area into focus while providing greater depth of field. In addition, the lens features three high-precision aspherical lens elements–ground, replica, and GMo. The circular aperture, meanwhile, has a beautiful and natural background blur when shooting at wider apertures. Other details include internal focusing, a ring-type ultra-sonic monitor (USM), and new fast and quiet autofocusing AF algorithms.
CANON 16-35mm EF L II F2.8 Features:
16 35mm ultra-wide-angle zoom lens with f/2.8 maximum aperture
Three high-precision aspherical lens elements produce superior image quality; the Closest focusing distance: is 0.92 feet
Circular aperture produces natural background blur at wider apertures, Ring-type USM for fast and quiet autofocusing, and internal focusing.
It measures 3.5 inches in diameter and 4.4 inches long.