Sigma 10 mm f/2.8 EX DC FISHEYE HSM
5. Chromatic aberration
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Here again we meet with the test chart distortion problem and a significant distancing of the aberration areas. As a result, the “fisheye” lenses performance is much worse in the tests than in reality. Taking that into account, the graph presented below looks sensible indeed. Even forgetting that we deal here with the “fisheye” type of lens, we must admit that the chromatic aberration level reaches only the medium and high borderline. In the majority of the field of vision we’ll have a lower level of aberration in reality so there’s really nothing to worry about.
