When Sigma introduced the 50mm Art lens photographer were pretty happy to get an almost Zeiss quality lens for under a $1000 price tag. (You can see some comparisons and tests here, here and here). We’ve heard many rumors on an upcoming 24mm art lens and today Sigma broadens the art line with a 24mm f/1.4 DG HSM Art Lens, and if it compares to the 50mm art, there is much reason to rejoice.
The 20 art (A.K.A Sigma 28mm f/1.4 DG HSM Art Lens) will be available for all three mounts when it starts shipping: Nikon, Canon and Sigma. I assume we will see Sony coming soon. Well, there are no prices or dates yet, so those will probably have to come first
One nice update to the line is the ability to switch from Auto focus to manual focus simply by engaging the focus ring (similar to Nikon and Canon lenses).
Here are the dry specs: