The EF 11–24 mm 4L USM lens is a professional wide-angle lens made by Canon Inc. It was announced on February 5, 2015, and at that time was the widest rectilinear lens ever made for the 35 mm format in either its film or digital versions.
The lens has an EF mount to work with the EOS line of cameras. Other than the front element, it is sealed against dust and water, and features a diaphragm which remains nearly circular. It produces minimally distorted images.
Specifications Attribute 4L USM Image Key features Full-frame compatiblecolspan=1 Image stabilizercolspan=1 Environmental Sealingcolspan=1 Ultrasonic Motorcolspan=1 L-seriescolspan=1 Diffractive Opticscolspan=1 Technical data Aperture (max–min) 4–22 Construction 11 groups / 16 elements # of diaphragm blades 9 Closest focusing distance 0.28 m / 11" (at 24 mm) Max. magnification 0.16× (at 24 mm) Horizontal viewing angle 117° 10′–74° Vertical viewing angle 95° 10′–53° Diagonal viewing angle 126° 05′–84° 00′ Physical data Weight 1180 g / 41.6 oz Maximum diameter 108 mm / 4.3" Length 243 mm / 5.2" Filter diameter rear Accessories Lens hood n/a Retail information Release date February 2015 Currently in production? MSRP US$$2,999.00
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Similar lenses Nikon AF-S 14–24 mm f/2.8G IF-ED Lens. The Canon 11–24 mm has a wider field of view than the Nikon 14–24 mm, however, they are similar in size, weight, and intended usage. Sigma 12–24 mm f/4 DG HSM ART
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