The Sigma 40mm F1.4 DG HSM Art is a full-frame prime for Canon EF mount featuring 18 elements in 15 groups with a Nano Porous Coating for reduced ghosting and flare, designed to deliver cinematic rendering at F1.4. It uses HSM autofocus and a 9-blade circular aperture. The lens belongs to Sigma's Global Vision Art line.
Product released: September 27, 2018
Latest firmware version
Version 1.01, released April 23, 2020
What's new in version 1.01
It has optimized exposure during viewfinder shooting when used in combination with EOS 90D and EOS-1D X Mark III.