Sigma 12-24mm F4 DG HSM | Art (Canon EF mount) firmware v2.01

Sigma · Released Nov 19, 2020 · First seen Jul 5, 2026

v2.01 is the latest firmware for the Sigma 12-24mm F4 DG HSM / Art (Canon EF mount), released November 19, 2020.

In short — summary by updatemystuff.com

Improved viewfinder exposure accuracy and fixed rare live view communication issues with Canon bodies

  • Optimized exposure during viewfinder shooting on EOS 90D and EOS-1D X Mark III
  • Corrected rare communication problem during Live View on EOS-1D X Mark III

Written from Sigma's release notes, which are printed in full below.

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What's in this update

It has optimize​d exposure during viewfinder shooting when used in combination with Canon EOS 90D and EOS-1D X Mark III.It ha​s fixed a rarely-occurring communication problem during Live View shooting when mounted on the EOS-1D X Mark III.

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Other versions for this product

See the full firmware history for the 12-24mm F4 DG HSM | Art (Canon EF mount)