Sigma 40mm F1.4 DG HSM | Art (Canon EF mount)
firmware v1.01
Sigma · Released Apr 23, 2020 · First seen Jul 5, 2026
v1.01 is the latest firmware for the Sigma 40mm F1.4 DG HSM / Art (Canon EF mount), released April 23, 2020.
What's in this update
It has optimized exposure during viewfinder shooting when used in combination with EOS 90D and EOS-1D X Mark III.
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