Sigma 40mm F1.4 DG HSM Review

November 22, 2018 | Mark Goldstein |

Sigma 40mm F1.4 DG HSM Sharpness at 40mm

For this test, the Sigma 40mm F1.4 DG HSM 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 40mmThe full frame at 40mm

Both centre and edge sharpness are excellent wide open at f/1.4, and outstanding through from f/2 to f/11, with f/16 being adversely affected by diffraction.

Aperture Centre Crop Edge Crop
f/1.4 f1.4.jpg f1.4.jpg
f/2 f2.jpg f2.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