Canon EOS 5D Mark III Instruction Manual page 244

3 Menu Function Settings
Silent LV shootingN
This function applies to still photo shooting. For details, see page
208.
Metering timerN
You can change how long the exposure setting is displayed (AE lock
time).
[z5] Menu
Time code
You can set the time code. For details, see pages 239-242.
Silent Control
When [Enable h] is set, you can use the touch pad <h> and
Quick Control screen to change settings silently during movie
shooting. For details, see page 238.
Movie shooting button
When [V/
also press the shutter button completely or use Remote Switch RS-
80N3 (sold separately) or Timer Remote Controller TC-80N3 (sold
separately) to start/stop the movie shooting (p.187). However, when
[V/ ] is set, still photo shooting is not possible (p.230).
244
] is set, besides pressing the <0> button, you can