The Sigma 24-70mm f2.8 OS Art is a standard 2.9x zoom available in mounts for Canon, Nikon and Sigma DSLRs with full-frame sensors, and can also be used with Sony E-Mount bodies using Sigma's MC-11 mount converter. It has a very good image stabilization and is shorter, cheaper, produces less loCA, has a better Bokeh, and shows less vignetting than the reference in its class, the Nikon 24-70/2.8E VR. But its image quality at the short end and in the outer area of a high resolution full-frame senor is disappointing considering that this lens is a member of Sigma's well-renowned "Art"-line. But still the Sigma 24-70/2.8 OS Art earns a recommendation.
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