Translated Release: For customers using Sony “α9 (ILCE-9)” Thank you very much for your continued support of Sigma products. This time, in the combination of our MOUNT CONVERTER MC – 11 (SA – E, EF – E) and some zoom lenses to “α 9 (ILCE – 9)” which was released from Sony Corporation on May … Continue reading Sigma Working on MC-11 Firmware Fix For Sony a9