Mounts SA-E Ver. 1.06 Update Date 2017.07.20 ● 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 … Continue reading Sigma MC-11 Adapter Firmware Update