Sigma 70mm f/2.8 DG Macro Art Review

June 25, 2018 | Mark Goldstein | Rating star Rating star Rating star Rating star Half rating star

Sharpness at 70mm

For these sharpness tests the Sigma 70mm f/2.8 DG Macro Art lens was attached to a Canon EOS 5DS R body, which in turn was mounted on a sturdy tripod. Slight tonal changes are due to slight changes in natural light during the session.

The full frame at 27mmThe full frame at 70mm

The centre is very sharp, even wide-open at f/2.8, with peak performance achieved in the f/4-f/11 range. Diffraction is only really noticeable at f/22.

The edges are slightly soft at f/2.8, sharpening up sufficiently at f/4, with f/5.6-f/11 the optimum aperture range.

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