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Lens review

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM

20 October 2009
Szymon Starczewski

6. Distortion


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With distortion, similarly to chromatic aberration, there are no problems at any focal length. Geometric distortions at the edge of the frame do rise with the focal length, but even at 400 mm they’re small. Precise values at 120, 200, 300 and 400 mm amount to 0.14%, 0.32%, 0.38% and 0.43% respectively.

In this category Canon comes out very similarly, and Tokina slightly worse.

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Distortion

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Distortion

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Distortion

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Distortion