Canon EF 16-35mm f/2.8L III USM Review

October 17, 2016 | Mark Goldstein |

Sharpness at 35mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Canon EF 16-35mm f/2.8L III USM lens was attached to a Canon EOS 5D Mark IV body, which in turn was mounted on a sturdy tripod. Self-timer mode was activated. Slight tonal changes are due to slight changes in natural light during the session.

The full frameThe full frame at 35mm

Center and edge sharpness are a little soft at f/2.8, but very good between f/4 and f/11. At f/22 sharpness across the frame is beginning to drop-off due to diffraction, but is still commendably high.

Aperture Centre Crop Edge Crop
f/2.8 f2_8.jpg f2_8.jpg
f/4 f4.jpg f4.jpg
f/5.6 f5_6.jpg f5_6.jpg
f/8 f8.jpg f8.jpg
f/11 f11.jpg f11.jpg
f/16 f16.jpg f16.jpg
f/22 f22.jpg f22.jpg