Sigma 45mm F2.8 DG DN Review

November 4, 2019 | Mark Goldstein | Rating star Rating star Rating star Rating star Half rating star

Sharpness at 45mm

For this test, the Sigma 45mm F2.8 DG DN lens was attached to a Sony A7R III 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 45mmThe full frame at 45mm

Centre sharpness is good wide open at f/2.8, and outstanding through from f/4 to f/16, with f/22 being adversely affected by diffraction. Edge sharpness isn't quite as good, with the best results achieved between f/5.6 to f/16.

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