Sigma MOUNT CONVERTER MC-11 (SA-E) firmware v1.22

Sigma · Released Feb 20, 2020 · First seen Jul 5, 2026

v1.22 is not the latest firmware for the Sigma MOUNT CONVERTER MC-11 (SA-E): the current version is v1.28 (August 27, 2026). Go to v1.28

In short — summary by updatemystuff.com

Enables compatibility with four Sigma Art lenses and requires updated Optimization Pro software.

  • Supports 28mm, 40mm, 70mm, and 105mm Sigma Art lenses
  • Requires SIGMA Optimization Pro version 1.5.0 or later

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

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What's in this update

It has become compatible with the SIGMA 28mm F1.4 DG HSM | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.It has become compatib​le with the SIGMA 40mm F1.4 DG HSM | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.It has become compatible with the SIGMA 70mm F2.8 DG MACRO | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.It has become comp​atible with the SIGMA 105mm F1.4 DG HSM | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.

Note: Before updating the SIGMA MOUNT CONVERTER MC-11 firmware, please ensure SIGMA Optimization Pro has been updated to ver. 1.5.0 or later.

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Changed since v1.21

  • It has become compatible with the SIGMA 28mm F1.4 DG HSM | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.It has become compatible with the SIGMA 40mm F1.4 DG HSM | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.It has become compatible with the SIGMA 70mm F2.8 DG MACRO | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.It has become compatible with the SIGMA 105mm F1.4 DG HSM | Art for SIGMA SA mount, that has the latest firmware Ver.1.01.

Other versions for this product

See the full firmware history for the MOUNT CONVERTER MC-11 (SA-E)