Sigma MOUNT CONVERTER MC-11 (SA-E) firmware v1.05

Sigma · Released Jul 5, 2017 · First seen Jul 5, 2026

v1.05 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

Added compatibility with three Sigma Art and Contemporary lenses.

  • Support for SIGMA 14mm F1.8 DG HSM | Art
  • Support for SIGMA 24-70mm F2.8 DG OS HSM | Art
  • Support for SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary

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 14mm F1.8 DG HSM | Art and the SIGMA 24-70mm F2.​8 DG OS HSM | Art.It has become compatible with the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for SIGMA (ver. 1.01).

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

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Changed since v1.04

  • It has become compatible with the SIGMA 14mm F1.8 DG HSM | Art and the SIGMA 24-70mm F2.8 DG OS HSM | Art.It has become compatible with the SIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary for SIGMA (ver. 1.01).

Other versions for this product

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