Sigma 105 mm f/2.8 EX DG OS HSM Macro
5. Chromatic aberration
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The graph below shows the result of our measurements of lateral chromatic aberration on the edge of the APS-C sensor and full frame. The lens on both of them shows a similar level, amounting to about 0.02%, which, additionally, doesn’t depend on the aperture value. Of course we should mention it is a negligible level, not disturbing at all. Here the Sigma fares a bit better than the Canon which had the aberration level ranging from 0.06-0.08% and a bit better than the Nikkor, which results were near 0.05-0.07%.
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