Well, there's a new kid on the block – the the new Sigma 50mm f/1.4 Art lens. For full details, see this article – Photo Rumors: “First Sigma 50mm f/1.4 DG HSM Art lens test”.
The price and release date have yet to be announced, but the the new Sigma 50mm f/1.4 Art will cost less and has autofocus – can't wait to see how it stacks up on DxO Mark!
Comparing Sigma f/1.4 DG HSM Art lens with other lenses
From Photo Rumors:
Xitek published the first comparison images of the new Sigma 50mm f/1.4 DG HSM Art lens and three other lenses
The nomenclature of the jpg files shown is as followed:
311: the new Sigma 50mm f/1.4 Art (price unknown)
Read about the complete test on Photo Rumors: “First Sigma 50mm f/1.4 DG HSM Art lens test”
About Sigma 50mm f/1.4 DG HSM
The staple Sigma 50mm 1.4 DG HSM has been redesigned and reengineered to set a new standard for the Art line. With a large 1.4 aperture, the Sigma 50mm 1.4 prime lens is pro level performer for shooting everything including portrait photography, landscape photography, studio photography and street photography. A Hyper Sonic Motor (HSM) ensures quiet, smooth and accurate autofocusing and paired with Special Low Dispersion (SLD) glass and Super Multi-Layer coating, the 50mm 1.4 is a high performance lens for modern DSLR sensors. 13 elements in 8 groups allow for unsurpassed performance even at wide apertures and close-up photography is easily managed with a minimum focusing distance of 40cm. The Sigma 50mm 1.4 lens is the new exceptional standard, standard prime.
More information about the Sigma 50mm 1.4 DG HSM
(cover photo credit: snap from Sigma)