Thank you for purchasing and using our products.

We would like to announce that a firmware update for the SIGMA MOUNT CONVERTER MC-11 SA-E and EF-E is now available.

This firmware update makes the SIGMA MOUNT CONVERTER MC-11 compatible with the new product as well as the latest firmware of SIGMA interchangeable lenses for Canon. It improves AF performance in the peripheral areas of the image as well as when the “Eye AF” function is selected. It also improves operation when some lenses that are not compatible with the MC-11 are attached.

For customers who own the SIGMA MOUNT CONVERTER MC-11 SA-E / EF-E, please update the firmware via SIGMA Optimization Pro※ by connecting it to a computer using the supplied USB Cable. After completing the firmware update, please remove the battery from the camera, re-insert it and turn on the camera before attaching the MC-11.
※ 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 from the following download page.

[Applicable product]
SIGMA MOUNT CONVERTER MC-11 EF-E

[Benefits of the update]
・It has become compatible with the SIGMA 14-24mm F2.8 DG HSM | Art for Canon.
・It has become compatible with SIGMA interchangeable lenses for Canon that are updated to firmware ver.2.00.
・With the SGV lenses (Ver.2.00) listed below*, it has improved AF performance in the peripheral areas of the image as well as when the “Eye AF” function is selected.
SIGMA 35mm F1.4 DG HSM | ArtSIGMA 50mm F1.4 DG HSM | ArtSIGMA 85mm F1.4 DG HSM | ArtSIGMA 135mm F1.8 DG HSM | ArtSIGMA 18-35mm F1.8 DC HSM | ArtSIGMA 24-70mm F2.8 DG OS HSM | ArtSIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary
・With lenses that are not compatible with the MC-11, it has corrected the release time lag which occurred during flash photography.
* Please note that this does not guarantee accurate operation with all the lenses that are not compatible with the MC-11.

[Applicable product]
SIGMA MOUNT CONVERTER MC-11 SA-E

[Benefits of the update]
・It has become compatible with the SIGMA 14-24mm F2.8 DG HSM | Art for SIGMA.
・With the SGV lenses listed below, it has improved AF performance in the peripheral areas of the image as well as when the “Eye AF” function is selected.
SIGMA 35mm F1.4 DG HSM | ArtSIGMA 50mm F1.4 DG HSM | ArtSIGMA 85mm F1.4 DG HSM | ArtSIGMA 135mm F1.8 DG HSM | ArtSIGMA 18-35mm F1.8 DC HSM | ArtSIGMA 24-70mm F2.8 DG OS HSM | ArtSIGMA 100-400mm F5-6.3 DG OS HSM | Contemporary
・With lenses that are not compatible with the MC-11, it has corrected the release time lag which occurred during flash photography.
* Please note that this does not guarantee accurate operation with all the lenses that are not compatible with the MC-11.

[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 our company and products.