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Lens review

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM

25 January 2012
Szymon Starczewski

9. Ghosting and flares

The previous version of this lens worked against bright light moderately well. In the case of the new model we deal with more element groups so two more air-to-glass surfaces on which flares might be caught. What’s more, making the casing smaller certainly limited the possibility of installing appropriate diaphragms which can cut the side light off. In other words in this category we simply expected some problems and we were right. Light artifacts can be noticed at every focal length, at the maximum relative aperture and on stopping down as well. When the lens is wide open and the source of light is in a specific position the artifacts can be especially bothersome, appearing as a series of radially spread rays. Such an effect is shown in several of photos, presented below. In this category the lens definitely doesn’t deserve to be praised.

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Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares

Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares


Sigma 18-200 mm f/3.5-6.3 II DC OS HSM - Ghosting and flares