Canon EOS-1D X Mark III - Shutter Button Function for Movies

Shutter Button Function for Movies
You can set the functions performed by pressing the shutter button halfway or completely
during movie recording.
Caution
In movie recording, the [Shutter btn function for movies] setting overrides any
function assigned to the shutter button in [ 6: Custom Controls].
1.
Select [ : Shutter btn function for movies].
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