In Stock. High-performance L-series ultra-wide-angle zoom lens with constant f/2.8 maximum aperture. All-new optical design for significant improvements in outer and corner sharpness. Subwavelength Coating (SWC) and Air Sphere Coating (ASC) help to significantly reduce flare and ghosting. 20mm/2.8 USM, 17-40mm f/4, 16-35mm/2.8 II, 16-35mm/4 IS and 11-24mm f/4 L. bigger. The Canon 20mm/2.8 USM is the smallest, lightest and least expensive of the bunch. For general purpose ultrawide use, it also has the most useful single focal length. The 20/2.8 USM is the lens I carry when I'm traveling light. Versus Canon 17-40mm f/4 hZZx.

canon ef 16 35mm f 2.8 l iii usm lens