Sigma 311101 50mm F1.4 DG HSM Art Lens for Canon, Black

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can be content with “very good” rather than “extreme” sharpness at the fastest apertures or in the corners The real truth of it is that zone focus will beat AF always, but leaving that out, I'd rather manually focus and get one exceptional image than have my camera autofocus and get 30 mediocre images. I never shot or held medium format gear, but I got a feeling the sigma might be weight-wise entering in that category :/

Sigma 50mm f1.4 DG HSM Art for Canon EF | Wex Photo Video

This is the optical reference regarding sharpness and contrast at every distance and it also sports very low longitudinal CA. But it is even larger and heavier and four times as expensive as the Sigma Art. Plus it has one big deficit: no auto-focus! Looking closer into the resolution results the new Sigma Art even manages to beat the mighty Otus by a small amount in center performance and it shows less light fall-off in the corners. That is an outstanding feat. Regarding Bokeh the Sigma Art and Zeiss Otus are pretty close with the Zeiss producing the bigger Bokeh balls in the center but having a stronger cat’s-eye effect towards the corners. The Sigma 50mm f/1.4 DG HSM Art is a lens that delivers outstanding performance at a reasonable price.I've not used this Sigma 50, so can't be sure. But good Leica and Zeiss lenses, besides being sharp, do subtle colour real well.

Sigma 50mm f/1.4 DG HSM Art Lens Review | ePHOTOzine

Overall, with this lens Sigma have created a lens which performs well in terms of sharpness and other optical attributes, for a fairly reasonable price. This combination of price versus performance will almost certainly win many fans for this lens, even despite its large size and weight for a 50mm optic.In designing the lens with a large 85.4mm diameter, and placing the widest elements within the front group, greater peripheral brightness is more easily attained when working with larger apertures. This design also lends itself to minimizing vignetting throughout the aperture range for greater clarity and detail across the image frame. Super Multi-Layer Coating