Thank you for purchasing and using our products.

We would like to announce the firmware update for the SIGMA MOUNT CONVERTER MC-11 SA-E.

This firmware update allows the SIGMA 24-105mm F4 DG OS HSM | Art to offer faster AF speed.

For customers who own the SIGMA MOUNT CONVERTER MC-11 SA-E, please update the firmware via SIGMA Optimization Pro.

※ 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.

【SIGMA Optimization Pro Download page】

【Applicable product】

【Benefit of this firmware update】
・It has become compatible with the SIGMA 24-105mm F4 DG OS HSM | Art in SIGMA mount (firmware version 1.01).

For further information, please contact your nearest authorized SIGMA subsidiary / distributor.

We appreciate your continued support for our company and products.