MOUNT CONVERTER MC-11 (SA-E) firmware v1.18
Sigma · Released May 23, 2019 · First seen by GearPulse Jul 5, 2026
What's in this update
It has improved the AF speed when it is used in combination with the SONY α9 or SONY α7 III and the SIGMA 135mm F1.8 DG HSM | Art for SIGMA. Note: For customers who own the SONY α9, please update the firmware of the camera to Ver.5.00 or later.
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