Just posted: Sigma 50mm f/1.4 DG HSM Art Lens Review
With excellent image quality and great design, this lens becomes the easy 50mm AF lens choice. AF consistency remains this lens' biggest weakness.
With the demand this lens is seeing right now, I suspect that the 50 Art is going to be hard to get for some time. Preorder the Sigma 50 Art Lens now at B&H for earliest access.