Sigma MOUNT CONVERTER MC-11 (EF-E) firmware v1.16

Sigma · Released Sep 10, 2018 · First seen Jul 5, 2026

v1.16 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

Supports newer lens firmware versions and improves autofocus in peripheral areas and Eye AF.

  • Gains compatibility with updated 150-600mm, 100-400mm, and 50-100mm lens models
  • Enhanced autofocus performance in image periphery and Eye AF for compatible SGV lenses
  • Requires SIGMA Optimization Pro update before firmware installation

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 150​-600mm F5-6.3 DG OS HSM | Contemporary (Firmware Ver.2.00) and SIGMA 150-600mm F5-6.3 DG OS HSM | Sports (Firmware Ver.2.00).It has become compatible with the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary（Firmware Ver.2.03).It has become compatible with the SIGMA 50-100mm F1.8 DC HSM | Art (Firmware Ver.2.01).With applicable SGV lenses*, it has improved AF performance in the peripheral areas of the image as well as the “Eye AF” function when it is selected, * Applicable SGV lenses: SIGMA 30mm F1.4 DC HSM | Art、SIGMA 14mm F1.8 DG HSM | Art、SIGMA 20mm F1.4 DG HSM | Art、SIGMA 24mm F1.4 DG HSM | Art、SIGMA 500mm F4 DG OS HSM | Sports、SIGMA 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary、SIGMA 18-200mm F3.5-6.3 DC MACRO OS HSM | Contemporary、SIGMA 18-300mm F3.5-6.3 DC MACRO OS HSM | Contemporary、SIGMA 50-100mm F1.8 DC HSM | Art、SIGMA 12-24mm F4 DG HSM | Art、SIGMA 24-35mm F2 DG HSM | Art、SIGMA 24-105mm F4 DG OS HSM | Art、SIGMA ​120-300mm F2.8 DG OS HSM | Sports、SIGMA 150-600mm F5-6.3 DG OS HSM | Contemporary、SIGMA 150-600mm F5-6.3 DG OS HSM | Sports Note: Before updating the firmware using the SIGMA MOUNT CONVERTER MC-11, please ensure to update SIGMA Optimization Pro to Ver.1.4.1 or later for Windows, and Ver.1.4.0 or later for Macintosh.

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Other versions for this product

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