Canon MARK IV User Manual (en)

As with normal shooting through the viewfinder, while the Live View 
image is displayed, you can still use the camera buttons to change 
settings and playback images.
Pressing the <W> <o> 
<y> <Z> <O> <A> button will 
display the setting screen on the LCD 
monitor. To change the setting, turn 
the <6> or <5> dial.
When you press the <B> button, turn the <6> dial to set the 
card and turn the <5> dial to set the image size or white balance 
while looking at the rear LCD panel.
The metering mode is fixed to evaluative metering for Live View shooting.
Pressing the <A> button will lock the exposure for 16 sec.
To check the depth of field, press the depth-of-field preview button.
During continuous shooting, the exposure set for the first shot will 
also be applied to subsequent shots.
Possible Shots During Live View Shooting
The figures above are based on a fully-charged Battery Pack LP-E4 and CIPA 
(Camera & Imaging Products Association) testing standards.
Continuous Live View shooting is possible for approx. 3 hr. at 23°C/73°F or 
2 hr.  50 min. at 0°C/32°F (with fully-charged Battery Pack LP-E4).
Shooting Function Settings
At 23°C / 73°F
At 0°C / 32°F
Possible shots
Approx. 270
Approx. 230
Even during the Live View image display, image playback is possible by 
pressing <x>.
If the camera is not operated for a prolonged period, the power will turn 
off automatically as set with [5 Auto power off] (p.52). If [5 Auto 
power off
] is set to [Off], the Live View shooting will stop automatically 
after approx. 30 min. (camera power remains on).
You can also autofocus by pressing the release button halfway on Remote 
Switch RS-80N3 or Timer Remote Controller TC-80N3 (both sold separately).
With the stereo AV cable (provided) or HDMI cable (sold separately), the 
Live View image can be displayed on a TV (p.170-171).