The Sigma 40mm F1.4 DG HSM Art is a full-frame prime for Nikon F mount featuring 18 elements in 15 groups with Nano Porous Coating, 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 August 20, 2020
What's new in version 1.01
It has improved the start-up time after the Nikon D6 power is turned on.It has fixed an issue where the autofocus did not work when used on a Nikon D6.