LensTip.com

Lens review

Sigma 12-24 mm f/4.5-5.6 II DG HSM

27 December 2011
Arkadiusz Olech

5. Chromatic aberration

Although the depth of field, given by the tested lens, is quite significant and it would be difficult to find large fuzzy areas in photos, in places where you can find them the longitudinal chromatic aberration is not corrected perfectly well. Looking at the photo below you can notice that the objects situated before the focal plane have slight blue hue and those after that plane are tinted red.

Sigma 12-24 mm f/4.5-5.6 II DG HSM - Chromatic aberration

The previous Sigma 12-24 mm model had a lot of problems with the lateral chromatic aberration which could reach even a level of 0.28% and it was really high at 12 mm and at 18 mm as well. Let’s glance how the new Sigma fares in this category.


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Sigma 12-24 mm f/4.5-5.6 II DG HSM - Chromatic aberration

Sigma 12-24 mm f/4.5-5.6 II DG HSM - Chromatic aberration

Although the performance is far from perfect, the improvement is quite visible. The aberration still remains the highest at the shortest focal length but its level decreased to 0.20% - a very high value but lower than that of its predecessor. Even more noticeable betterment appeared in the middle of the focal lengths range. At 24 the improvement is a bit smaller but certainly noticeable.

What can be said? We are glad there is some improvement but we are worried that the aberration is still clearly visible. The fact that it is possible to correct it in a better way was shown very well by the Nikkor 14-24 mm f/2.8.

Sigma 12-24 mm f/4.5-5.6 II DG HSM - Chromatic aberration