In the Version 2.0.4 firmware, the following phenomena that occurred with the Version 2.0.3 firmware (which was to enhance the movie functions) have been corrected.
There was a phenomenon in which the manual recording settings made in C1/C2/C3 were changed and sound could not be recorded if manual sound recording was used in the C1/C2/C3 settings and the camera was subsequently turned off (or if Auto Power Off was activated). This does not occur in modes other than C1/C2/C3.
The Version 2.0.4 firmware includes the movie function enhancements listed in items 1 through 5 below, and also incorporates the correction listed in item 6.
Adds or changes the following movie frame rates.
NTSC :
1920×1080 : 30 fps (changed – actual 29.97 fps)
1920×1080 : 24 fps (added – actual 23.976 fps)
640×480 : 30 fps (changed – actual 29.97 fps)
PAL :
1920×1080 : 25 fps (added – actual 25.0 fps)
1920×1080 : 24 fps (added – actual 23.976 fps)
640×480 : 25 fps (added – actual 25.0 fps)
Adds a function for manually adjusting the sound recording level (64 levels).
Adds a histogram display (brightness or RGB) for shooting movies in manual exposure.
Adds shutter-priority AE mode (Tv) and aperture-priority AE (Av) mode to the exposure modes for shooting movies.
Changes the audio sampling frequency from 44.1 KHz to 48 KHz.
Fixes a phenomenon where communication between the camera and the attached lens is sometimes interrupted after manual sensor cleaning. (This phenomenon only affects units with Firmware Version 1.2.4.)
Download : http://web.canon.jp/imaging/eosd/firm-e/eos5dmk2/firmware.html
Alternate Download :
Windows : http://www.canonrumors.com/files/5dfirmware/eos5d2204.exe
MacOS : http://www.canonrumors.com/files/5dfirmware/eos5d2204.dmg