First Looks at Sigma 50mm f/1.4 DG HSM Art Lens Image Quality

Image quality, vignetting and distortion test results along with specs/measurements and product images are now available on the Sigma 50mm f/1.4 DG HSM Art Lens review page.

Here are some direct comparisons you might be interested in:

Canon EF 50mm f/1.2L USM Lens
Canon EF 50mm f/1.4 USM Lens
Canon EF 50mm f/1.8 Lens (at f/1.8)
Sigma 50mm f/1.4 EX DG HSM Lens (not the "Art" version)
Zeiss Otus 55mm f/1.4 Distagon Lens
Zeiss 50mm f/1.4 Planar T* Lens
Zeiss 50mm f/2.0 Makro-Planar T* ZE Lens

The Nikon 50mm lens results are also available, but they are captured using a Nikon DX3 vs. the Canon EOS-1Ds III. Use your discernment in making these comparisons.