Thank you for purchasing and using our products.
We are pleased to announce that a firmware update for the SIGMA MOUNT CONVERTER MC-21 EF-L is now available.

[Applicable product]

SIGMA MOUNT CONVERTER MC-21 EF-L

[Benefits of the update]

Ver.1.4
・MF assist is now supported when a SIGMA CINE LENS for Canon EF mount is attached.
・It makes the converter compatible with the SIGMA CINE LENS FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount.

*When using the SIGMA FF High Speed Prime Line 65mm T1.5 FF for Canon EF mount, be sure to update the firmware of the SIGMA MOUNT CONVERTER MC-21 EF-L to Ver. 1.4.

[How to update]

Those who update the firmware on the camera:
Please select the applicable product from the following page, go to the download page, click “EF-L”, read “Before updating” to update your software, and follow the update procedure.
https://www.sigma-global.com/en/accessories/mc-21/?tab=support&local=firmware

For those who own the SIGMA USB DOCK UD-11:
Connect the lens to a computer via the SIGMA USB DOCK UD-11 (sold separately), then open SIGMA Optimization Pro*. If the lens firmware isn’t the latest version, the following message will appear: ‘The latest mount converter firmware is available’. Click ‘Yes’ to update.

*Before updating lens firmware using the SIGMA USB DOCK UD-11, please ensure you update SIGMA Optimization Pro to the latest version.

【SIGMA Optimization Pro download page】

https://www.sigma-global.com/en/download/lenses/sigma-optimization-pro

For further information, please contact your nearest authorized SIGMA subsidiary / distributor.
https://www.sigma-global.com/en/about/world-network

We appreciate your continued support for SIGMA products.