LensTip.com

Lens review

Sigma C 65 mm f/2 DG DN

27 February 2021
Maciej Lata³³o

10. Autofocus

The autofocus of the Sigma C 65 mm f/2 DG DN, when joined with the Sony A7R III camera, is practically noiseless; still its speed can only be called average. Typically, running through the whole distance range and confirming the focus takes about 0.8 of a second. From time to time you can experience some focus play or slowing down, especially when the mechanism moves from infinity to the minimum focusing distance. Sporadically we also experienced situations when e.g. the focus moved in the proper direction but two times slower than usual.

Fortunately when the lens decides to set the focus, in 99% of cases it does it right. We haven't experienced any misses either during our studio session or in the open air.

We also haven't observed any distinct front or back focus tendencies.


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A7R III, f/2.0
Sigma C 65 mm f/2 DG DN - Autofocus