Originally Posted by
Ken MT
Looking at the 7D Mk 1 and note the following
Download Firmware Version 2.0.5 for the EOS 7D.
NOTE:
When updating the firmware of your camera, please first review the instructions thoroughly before you download the firmware.
-When the camera is updated to Firmware Version 2.0.5, the following settings will be automatically reset.
a) Date/Time setting
b) Lens peripheral illumination correction data registered to the camera
-The Wireless File Transmitter WFT-E5A must be running Firmware Version 1.0.7 in order to be used with the EOS 7D camera running Firmware Version 2.0.5.
so can't say that there will not be changes