Sigma 65mm F2 DG DN Review
Sharpness at 65mm
The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Sigma 65mm F2 DG DN lens was attached to a Sony A7 III camera 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 frame at 65mm
The centre is pleasingly sharp wide open at f/2, with the peak performance achieved in the f/2.8-f/11 range. Diffraction sets in at at f/16 and especially f/22.
The edges are also sharp even at f/2, with f/2.8-f/11 again the optimum settings.
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