Canon EF 50mm f/1.8 STM Review

June 29, 2015 | Mark Goldstein |

Canon EF 50mm f/1.8 STM Sharpness at 50mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Canon EF 50mm f/1.8 STM lens was attached to a Canon EOS 5Ds 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 50mm

Centre sharpness remains high through from f/4 to f/11, with f/16 and f/22 being adversely affected by diffraction. The edges aren't nearly as sharp as the centre, with f/5.6 to f/11 producing the sharpest results.

Aperture Centre Crop Edge Crop
f/1.8 f1_8.jpg f1_8.jpg
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