Canon EOS 7D Firmware Update Version 1.2.3
is now available.
Firmware version 1.2.3 incorporates the following fixes.
1. Fixes a phenomenon in which the settings of the Speedlite Transmitter ST-E2 revert to the default settings when both the camera and the ST-E2 are set to auto power off.
2. Fixes a phenomenon in which the Macro Ring Lite (MR-14EX, MT24-EX) and slave flashes do not sync while shooting wirelessly.