The Sigma 12-24mm F4 DG HSM Art is a full-frame ultra-wide zoom for Sigma SA mount featuring 16 elements in 11 groups with a constant F4 aperture. It uses HSM autofocus and delivers rectilinear images from 12 to 24mm. The lens belongs to Sigma's Global Vision Art line.
Product released: September 22, 2016
Latest firmware version
Version 1.01, released April 18, 2019
What's new in version 1.01
It has improved the AF speed and quality when the lens is used with the SIGMA MOUNT CONVERTER MC-21 SA-L.