The Sigma 45mm F2.8 DG DN Contemporary is a full-frame standard prime for mirrorless L-Mount in the compact 'I' series design, featuring 10 elements in 9 groups with a metal body and a 9-blade circular aperture. It was the first lens in Sigma's 'I' series launched alongside the fp camera. The lens belongs to Sigma's Global Vision Contemporary I series.
Product released: September 19, 2019
Latest firmware version
Version 1.7, released March 18, 2026
What's new in version 1.7
・Added the ability to assign specific functions to the focus ring during AF.* ・Added the option to change the rotation direction of the focus ring during MF.* ・Added the option to display the aperture value as a T-stop during video recording.* *Only on supported cameras.