Delivering the ultimate combination of wide-angle, low-light performance, L-series optics and compact construction, the new Canon EF 16–35mm f/4L IS USM lens is a phenomenal complement to any EOS SLR camera. This L-series ultra wide-angle zoom incorporates an Optical Image Stabilizer, and offers up to four stops of correction for admirable performance even in dim light. It features three aspheric lens elements and two UD lens elements to minimize aberrations throughout the zoom range, plus a fluorine coating that helps to minimize ghosting. A circular 9-blade aperture delivers gorgeous background blur. The EF 16–35mm f/4L IS USM features inner focusing and ring USM for accurate, discreet and speedy AF. It also offers full-time manual focus and has a minimum focusing distance of 0.92 ft./0.28m across the entire zoom range. Built to function even in unfavorable weather conditions, the EF 16–35mm f/4L IS USM is dust-resistant and water-resistant (when used with an optional Canon PROTECT filter) for professional caliber ultra-wide performance, everywhere.

Specifications

• Focal Length & Maximum Aperture: 16–35mm 1:4.0
• Lens Construction: 16 elements in 12 groups
• Diagonal Angle of View: 108°10' – 63°
• Focus Adjustment: Inner focus system
• Closest Focusing Distance: 0.92 ft. / 0.28m
• Filter Size: 77mm diameter
• Max Diameter x Length, Weight: 3.3 x 4.4 inches, approx. 21.7 oz. / 82.6 x 112.8mm, approx. 615g

Broaden your perspective with the Canon EF 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. The lens features three high-precision aspherical lens elements--ground, replica, and GMo--that produce even better image quality than the original Canon EF 16-35mm USM lens. The circular aperture, meanwhile, produces 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 AF algorithms for fast and quiet autofocusing.

• Focal length: 16-35mm
• Maximum aperture: f/2.8
• Lens construction: 16 elements in 12 groups
• Focus adjustment: AF with full-time manual
• Closest focusing distance: 0.92 feet
• Filter size: 82mm, P=0.75mm/1 filter
• Dimensions: 3.5 inches in diameter, 4.4 inches long
• Weight: 1.41 pounds

The EF 16-35mm f/2.8L II USM is a high performance, water-resistant, and ultra wide-angle Canon L-series lens. It has been specifically designed for improved edge-to-edge image quality that will meet the strict requirements of professional and high-end amateur photographers. It features 3 high-precision aspherical lens elements, each of a different type: ground, replica and GMo for even better image quality than the original EF 16-35mm f/2.8L USM. The circular aperture produces a beautiful and natural background blur when shooting at wider apertures. Other features include internal focusing, a ring type USM (Ultra Sonic Monitor), and new AF algorithms for fast and quiet autofocusing.