The EF 16-35mm f/2.8L III USM is an ultra-wide-angle lens producing stunning clarity throughout the focal range. Suited to architecture and landscape photography, the focal lengths this lens can achieve make it an ideal companion for wider perspectives. Make the most of available light with the EF 16-35mm f/2.8L III USM’s large f/2.8 aperture, with a 9-bladed circular diaphragm creating beautiful bokeh. Part of the Canon professional L-series flagship range, it’s designed for robust handling and resistant to dust and moisture. The in-built Ultra-Sonic Motor (USM) drives fast and quiet Auto Focus with optional full manual override and the integrated petal-shaped lens hood prevents vignetting whilst protecting the front lens element.