Sigma MOUNT CONVERTER MC-11 (EF-E) firmware v1.36

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

v1.36 is not the latest firmware for the Sigma MOUNT CONVERTER MC-11 (EF-E): the current version is v1.43 (August 27, 2026). Go to v1.43

In short — summary by updatemystuff.com

Adds support for six Sigma lenses with specific firmware versions.

  • Supports 12-24mm, 24-35mm, 50-100mm, 60-600mm, 24mm, and 35mm lenses
  • Requires SIGMA Optimization Pro 1.6.0 or later

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

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What's in this update

It makes the converter compatible with the SIGMA 12-24mm F4 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.01It makes the converter compatible with the SIG​MA 24-35mm F2 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.01It makes the converter compatible with the SIGMA 50-100mm F1.8 DC HSM | Art in Canon EF mount, that has the latest firmware Ver.2.03It makes the converter compatible with the SIGMA 60-600mm F4.5-6.3 DG OS HSM | Sports in Canon EF mount, that has the latest firmware Ver.1.03It makes the converter comp​atible with the SIGMA 24mm F1.4 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.02It makes the converter compatible with the SIGMA 35mm F1.4 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.02 ※Please be sure to update SIGMA Optimization Pro to Ver.1.6.0 or later when updating the MC-11 firmware.

SIGMA Optimization Pro

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Changed since v1.35

  • It makes the converter compatible with the SIGMA 12-24mm F4 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.01It makes the converter compatible with the SIGMA 24-35mm F2 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.01It makes the converter compatible with the SIGMA 50-100mm F1.8 DC HSM | Art in Canon EF mount, that has the latest firmware Ver.2.03It makes the converter compatible with the SIGMA 60-600mm F4.5-6.3 DG OS HSM | Sports in Canon EF mount, that has the latest firmware Ver.1.03It makes the converter compatible with the SIGMA 24mm F1.4 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.02It makes the converter compatible with the SIGMA 35mm F1.4 DG HSM | Art in Canon EF mount, that has the latest firmware Ver.2.02 ※Please be sure to update SIGMA Optimization Pro to Ver.1.6.0 or later when updating the MC-11 firmware.

Other versions for this product

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