Canon EF 16-35mm f/2.8L III USM (International Version)

A constant f/2.8 maximum aperture across the zoom range ensures consistent exposure and excellent light transmission at any focal length. As a member of Canon's professional L-series, this lens is sealed against dust and moisture so you can shoot confidently in inclement environmental conditions. The front bulbous element carries a protective fluorine coating to resist fingerprints and smudges, making cleaning noticeably easier.