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Sigma just issued a recall for a popular Art lens, offering a free fix for lenses affected by an autofocus issue
Sigma has uncovered an autofocus glitch on some serial numbers of the Sigma 24-70mm f/2.8 DG DN II Art lens. On Thursday, December 19, Sigma Global issued a statement ...
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Sigma 28-70mm f/2.8 DG DN Contemporary Lens Review - Performance
The edges are very good from f/2.8 to f/16 and still good at f/22. At 70mm, central sharpness is very good from f/2.8 to f/16, rising to excellent at f/4 and still being good at f/22. The edges ...