Canon EF 70-200mm F2.8L IS III USM Review

May 30, 2019 | Mark Goldstein |

Canon EF 70-200mm F2.8L IS III USM Sharpness at 200mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Canon EF 70-200mm F2.8L IS III USM lens was attached to a Canon EOS 5DS R 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 200mm

Both center and edge sharpness are outstanding between f/2.8 and f/11. At f/16 sharpness is beginning to drop off due to diffraction, becoming much more prominent at f/22 and f/32.

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
f/32 f32.jpg f22.jpg