Thank you for purchasing and using our products.
We are pleased to announce that a new firmware update for the SIGMA MOUNT CONVERTER MC-11 EF-E is now available.

This firmware update makes the SIGMA MOUNT CONVERTER MC-11 EF-E compatible with the latest SIGMA interchangeable lenses firmware.
For customers who own the SIGMA MOUNT CONVERTER MC-11 EF-E, please update the firmware via SIGMA Optimization Pro※ by connecting it to a computer using the supplied USB Cable.
Before updating the SIGMA MOUNT CONVERTER 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.
【SIGMA Optimization Pro Download page】
https://www.sigma-global.com/en/download/lenses/sigma-optimization-pro/
【Applicable product】
・SIGMA MOUNT CONVERTER MC-11 EF-E
【Benefits of the update】
・It has become compatible with the SIGMA 105mm T1.5 FF EF mount Cine lens from the FF High Speed Prime Line.
・It has become compatible with the SIGMA 24-105mm F4 DG OS HSM | Art for Canon which has the latest firmware Ver.2.00.
For further assistance please contact Sigma Imaging (UK) Ltd Service Department by email: service@sigmauk.com or telephone: 01707 329 999
We appreciate your continued support for our company and products.