Canon EOS 6D Instruction Manual page 367

When the movie is played back, camera operation noise can be heard.
If you operate the camera's dials or lens during movie shooting,
the operation noise will also be recorded. Using an external
microphone (commercially available) is recommended (p.219).
The movie has still moments.
During autoexposure movie shooting, if there is a drastic change in the
exposure level, the recording will stop momentarily until the brightness
stabilizes. If this happens, shoot with <a> shooting mode (p.208).
No image appears on the TV screen.
Use the stereo AV cable that came with the camera (p.264).
Make sure the stereo AV cable or HDMI cable's plug is inserted all
the way in (p.261, 264).
Set the video OUT system (NTSC/PAL) to the same video system
as the TV set (p.264).
There are multiple movie files for a single movie shoot.
If the movie file size reaches 4 GB, another movie file will be
created automatically (p.217).
My card reader does not recognize the card.
Depending on the card reader and computer OS used, SDXC
cards may not be correctly recognized. If this occurs, connect your
camera to the computer with the provided interface cable, then
transfer the images to your computer using EOS Utility (provided
software, p.392).
I cannot process the RAW image.
41 and 61 images cannot be processed with the camera.
Use the provided software Digital Photo Professional to process
the image (p.392).
Troubleshooting Guide
367