This firmware update incorporates the following additional
functions and corrections:
- Enhancement of direct printing with specific printers.
of the communication errors that occurred when shooting with EOS 5D and
EOS Capture software after shooting about 138 shots.
- Correction of the phenomenon in which the flash mode
settings are changed from E-TTL to M (Manual) when EOS 5D is used in
combination with Speedlite Transmitter ST-E2 and Speedlite 580EX.
update applies to cameras with firmware versions up to 1.0.5 installed.
If your camera's firmware is already version 1.1.0, it is not necessary
to perform this update.
The update is available to download from the Canon website here