The Sigma 20mm F1.4 DG HSM Art is a full-frame ultra-wide prime for Canon EF mount featuring 15 elements in 11 groups and one of the widest maximum apertures available in a 20mm lens. It uses HSM autofocus and a 9-blade circular aperture, making it suited for astrophotography and architecture. The lens is part of Sigma's Global Vision Art line.
Product released: September 10, 2015
Latest firmware version
Version 2.01, released October 22, 2020
What's new in version 2.01
It has optimized the exposure during viewfinder shooting when used in combination with the EOS 90D and the EOS-1D X Mark III.It has reduced the operating sound of the lens diaphragm blades when attached with the SIGMA MOUNT CONVERTER MC-11 EF-E and used for shooting movies.It has reduced the operating sound of the lens diaphragm blades when used for shooting movies on Canon cameras.** The degree of improvement differs depending on the camera used.