Sony Alpha 7R III (ILCE-7RM3) firmware v3.1

Sony · Released Dec 16, 2019 · First seen Jul 4, 2026

v3.1 is the latest firmware for the Sony Alpha 7R III (ILCE-7RM3), released December 16, 2019.

What's in this update

Adds the "External Flash Set" function which allows you to configure the settings of an attached flash or wirel​ess radio commander (both sold separately) directly from the camera.

Compatible Flash models: HVL-F60RM(with flash firmware version 2.00 or later) HVL-F45RM(with flash firmware version 2.00 or later) Compatible wireless radio commander: FA-WRC1M(with f​irmware version 3.00 or later) Refer to the Help Guidefor more information.

Improves the overall stability of the camera Previous Benefits and Improvements

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See the full firmware history for the Alpha 7R III (ILCE-7RM3)