Sigma MOUNT CONVERTER MC-11 (SA-E) firmware v1.24

Sigma · Released Dec 17, 2020 · First seen Jul 5, 2026

v1.24 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

Adds support for 120-300mm lens and fixes occasional blinking during video.

  • Enables compatibility with 120-300mm F2.8 Sports lens
  • Fixes rare blinking during video recording

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 120​-300mm F2.8 DG HSM | Sports in SIGMA SA mount, that has the latest firmware Ver.1.02.It has improved a rarely-occurring blinking phenomenon during movie shooting.

Note: Please be sure to upda​te SIGMA Optimization Pro to Ver.1.6.0 or later when updating the MC-11 firmware.

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Other versions for this product

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