Canon's premium ultra-wide zoom — the EF 16-35mm f/2.8L III for professional full-frame use.
The Canon EF 16-35mm f/2.8L III USM is Canon's finest ultra-wide zoom for the EF mount, released in 2016. The third generation dramatically improved corner sharpness over the Mark II. L designation ensures premium optics with fluorite and ground aspherical elements. Constant f/2.8 provides professional speed. Weather sealed. Ring-type USM for fast quiet AF.
Outstanding optical performance — significantly improved over the Mark II with excellent corner sharpness. Fluorite and ground aspherical elements provide premium correction. The constant f/2.8 enables astrophotography and low-light ultra-wide work. Minimal distortion. Ring-type USM provides fast, precise AF. One of the finest EF ultra-wide zooms Canon produced.
Canon EF mount, full-frame. Filter thread 82mm. Weight approximately 790 grams. Build quality outstanding L-series with full weather sealing and fluorine coatings. The Mark III represents the pinnacle of Canon EF ultra-wide zoom engineering. Adapts to Canon RF mount via EF-RF adapter with full functionality.
Available at reasonable prices — RF alternatives have reduced EF demand. Check AF and clean elements. One of Canon's finest EF zooms. The Mark III improved corners dramatically over Mark II. Adapts perfectly to RF bodies via adapter. The 82mm filter thread enables standard filter use. Outstanding for landscape, architecture, and astro.