Sigma MOUNT CONVERTER MC-11 (EF-E) firmware v1.15

Sigma · Released Jul 13, 2018 · First seen Jul 5, 2026

v1.15 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 additional SIGMA Canon lenses at various firmware versions

  • Supports SIGMA 14mm/20mm/24mm/12-24mm/50-100mm with firmware 2.01
  • Supports SIGMA 14-24mm F2.8 with firmware 1.01
  • Supports SIGMA 100-400mm F5-6.3 with firmware 2.02

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 following SIGMA interchangeable lenses for Canon* that have the latest firmware Ver.2.01.It has becom​e compatible with the SIGMA 14-24mm F2.8 DG HSM | Art for Canon with firmware Ver.1.01.It has become compatible with the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for Canon with firmware Ver.2.02.

Note: Before updating the MC-11 firmware, please ensure SIGMA Optimiz​ation Pro has been updated to ver. 1.4.1 or later for Windows, and ver. 1.4.0 or later for Macintosh.

  • SIGMA 14mm F1.8 DG HSM | Art、SIGMA 20mm F1.4 DG HSM | Art、SIGMA 24mm F1.4 DG HSM | Art、SIGMA 12-24mm F4 DG HSM | Art、SIGMA 50-100mm F1.8 DC HSM | Art

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Other versions for this product

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