Sigma 500mm F4 DG OS HSM | Sports (Canon EF mount)
firmware v2.03
Sigma · Released Jul 8, 2021 · First seen Jul 5, 2026
v2.03 is the latest firmware for the Sigma 500mm F4 DG OS HSM / Sports (Canon EF mount), released July 8, 2021.
What's in this update
It has improved the AF speed when used in combination with Canon mount adapter EF-EOS R series attached on Canon EOS R5 and EOS R6.
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See the full firmware history for the 500mm F4 DG OS HSM | Sports (Canon EF mount)