Sigma 24-70mm F2.8 DG OS HSM Art Review

July 4, 2017 | Mark Goldstein |

Sigma 24-70mm F2.8 DG OS HSM Art Sharpness at 70mm

For this test, the Sigma 24-70mm F2.8 DG OS HSM Art lens was attached to a Canon EOS 5DS R body, which in turn was mounted on a sturdy tripod. Exposure delay mode was activated. Tonal and colour variances across the crops are due to changes in natural light during the session.

The full frame at 70mmThe full frame at 70mm

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 quite as sharp as the centre, with f/5.6 to f/11 producing the sharpest results.

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