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Lens review

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM

13 March 2013
Szymon Starczewski

9. Ghosting and flares


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As long as you work close to the maximum relative aperture the flares shouldn’t be very bothersome - you can notice some small, greenish artifacts which grow as you increase the focal length.

The situation changes for worse after stopping down. At 17 mm focal length you get a light greenish flare positioned in a corner opposite your source of bright light. At longer focal lengths it becomes even more problematic – perhaps the flare itself is smaller but the overall contrast of photos decreases and the frames get a distinct greenish cast.

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares

Sigma C 17-70 mm f/2.8-4.0 DC Macro OS HSM - Ghosting and flares