Canon EOS-1DX Instruction Manual page 235

Notes on Movie Shooting
Under [z5: Movie shoot. btn], if [V/o] is selected, you can press
the shutter button completely to start or stop the movie shooting (p.248).
Monaural sound is recorded by the camera's built-in microphone (p.227).
By connecting a stereo microphone (commercially available) equipped
with a 3.5 mm mini plug to the camera's external microphone IN terminal
(p.21), stereo sound recording is possible.
With a fully-charged Battery Pack LP-E4N, the total movie shooting time
will be as follows: approx. 2 hr. 10 min. at room temperature (23°C/73°F),
and approx. 2 hr. at low temperatures (0°C/32°F).
The focus preset function is possible for movie shooting when using a
(super) telephoto lens equipped with the focus preset mode marketed
since the second half of 2011.
Final Image Simulation
The final image simulation is a function that allows you to see the
effects of the Picture Style, white balance, etc., on the image.
During movie shooting, the image displayed will automatically reflect
the effects of the settings listed below.
Final image simulation for movies
Picture Style
* All settings such as sharpness, contrast, color saturation, and color tone will
be reflected.
White balance
White balance correction
Exposure
Depth of field
Auto Lighting Optimizer
Peripheral illumination correction
Chromatic aberration correction
Highlight tone priority
k Shooting Movies
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