The Sigma 105mm F1.4 DG HSM Art is a full-frame portrait telephoto prime for Sigma SA mount with an exceptionally large maximum aperture and 17 elements in 12 groups. It delivers extremely shallow depth of field suited for portrait work. The lens is nicknamed the 'Bokeh Master' in Sigma's Art line.
Product released: March 29, 2018
Latest firmware version
Version 1.01, released February 20, 2020
What's new in version 1.01
It has improved AF speed and quality when used in combination with SIGMA MOUNT CONVERTER MC-21 SA-L.