"Canons latest firmware for the EOS 5D Mark II - Version 2.0.4 - that adds five enhancements to the cameras EOS MOVIE functions, plus a fix to the manual sensor cleaning function, is now available for download." from here 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. The exact enhancements and fixes are as follows: Adds or changes the following movie frame rates. NTSC: 1920×1080: 30fps (changed - actual 29.97 fps). 1920×1080: 24fps (added - actual 23.976 fps). 640×480: 30fps (changed - actual 29.97 fps). PAL: 1920×1080: 25fps (added - actual 25.0 fps). 1920×1080: 24fps (added - actual 23.976 fps). 640×480: 25fps (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. Note - this phenomenon only affects cameras with Firmware Version 1.2.4.