- It corrects the phenomenon that AF does not operate properly when some lenses that are not compatible with the MC-11 are attached.
※ 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.
For those who own the SIGMA MOUNT CONVERTER MC-11 EF-E and SA-E, please update the firmware via SIGMA Optimization Pro by connecting it to a computer using a supplied USB Cable.