A phenomenal combination of Full-Frame sensor and ultra wide glass to create a formidable landscape kit. With the versatility of the 16-35mm you can go from the ultra wide 16mm to the more conventional 35mm, which is especially handy for the Events Photographers. A versatile camera and lens.

Great pictures and a good wide-angle

Don't feel as good build quality as my EF70/200mm f2.8 is usm mk2 lens

But to be honest, I didn't know what to expect from the beta version of the Canon 16-35mm f2.8 L USM III lens that I tried.

The new Canon EF 16-35mm f/2.8L III USM is an outstanding but also very expensive ultra-wide-angle zoom lens that will appeal most to landscape, reportage and wedding photographers looking for a well-built, weather-proof optic with the main advantage of a fast and constant f/2.8 aperture for...

Prepare to be impressed: The Canon EF 16-35mm f/2.8L III USM Lens delivers outstanding image quality, far surpassing its predecessor, in a very well built, great-to-use lens that features a range of focal lengths that I consider a critical part of most full frame (and many APS-C format) kits.

I've owned all 3 iterations of Canon's 16-35 mm f:2.8 L zoom. The first model was okay for its day, and rendered good 'sunstars' in backlit images, but resolution was just adequate for 8 mp sensors and corners tended to go soft with color fringing at most apertures.

Canon 16-35mm L lenses have an enviable reputation for quality and we now have the latest incarnation as the Mk III version. With a useful f/2.8 constant aperture and ultra-wide 16mm focal length this would be a versatile lens for much general work, including architecture, weddings and reportage.

very good

Taking into account the fact that the first lens of that type was launched already in 1996 and five years later the company showed a model with a bit wider focal range we were surprised that the next version of the lens, marked as II and launched in 2007, was a fail.

solid casing; excellent image quality in the frame centre; very good image quality on the edge of the APS-C sensor; good image quality on the edge of full frame; imperceptible longitudinal chromatic aberration; lack of serious problems with lateral chromatic aberration; moderate spherical...

a bit too high coma for the longer end of focal range; monstrous vignetting on full frame

With an equivalent focal length of 25.6-56mm and an equivalent aperture of F4.5 there are better wide-angle APS-C options on the market such as the Tokina 11-16mm F2.8 AT-X116 Pro DX II Lens or the Sigma 18-35mm F1.8 Art DC HSM that can really take advantage of a fast aperture for a fraction of the...