Canon EF11-24mm f/4L USM Unrivalled Image Quality Lens Unrivalled Image Quality with Widest 11-24mm Zoom Canon’s new EF11-24mm f/4L USM is an ultra wide-angle zoom lens, starting at 11 mm, the widest angle in it class and an f/4L zoom lens with the high image quality appropriate for L lenses. With other features such as special lens and coatings built in it, ghosting and distortions are well controlled. As the result, the EF11-24mm f/4L USM creates surreal images with clarity and widest angle. Effective arrangement of the four aspherical lenses resulted in proper correction of distortion across all zoom range. . Focal length and maximum aperture: 11-24 mm 1:4 . Lens construction: 16 elements in 11 groups . Diagonal angle of view: 126. 05. – 84. 00. . Focus adjustment: Focusing cam system by ring USM drive, full-time manual focus . Closest focusing distance: 0.28 m/ 0.918 ft., 0.16 x magnification . Zoom system: Rotation type Filter size: Rear insert-type . Max. diameter x length, weight: . 108.0 x 132.0 mm, 1180 g/ 4.3. x 5.2., 41.6 oz.
