Sigma MOUNT CONVERTER MC-11 (EF-E) firmware v1.07

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

v1.07 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 four SIGMA lenses across two product lines

  • 14mm F1.8 DG HSM Art lens support
  • 24-70mm F2.8 DG OS HSM Art lens support
  • 14mm and 135mm T2 FF lens support

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 SIGM​A 14mm F1.8 DG HSM | Art and SIGMA 24-70mm F2.8 DG OS HSM | Art.It has become compatible with the FF High Speed Prime Line SIGMA 14mm T2 FF (EF) and the SIGMA 135mm T2 FF (EF).

Note: Before updating the MC-11 firmware, 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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Other versions for this product

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