Canon EOS 5D Mark IV L-series Zoom Lens Kit Owner's Manual

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Operating the Camera Using a Smartphone
When the wireless connection is terminated while recording a movie with 
remote shooting, the camera responds as follows:
• When the Live View shooting/Movie shooting switch is set to <k>, 
movie shooting continues.
• When the Live View shooting/Movie shooting switch is set to <A>, 
movie shooting stops.
When the Live View shooting/Movie shooting switch is set to <A> and 
the movie mode is set by operating Camera Connect, you cannot shoot 
by operating the camera.
While connected, certain menu items are unavailable.
In remote shooting, the AF speed may become slower.
Depending on the connection status, image display or shutter release 
may be delayed.
When saving images to a smartphone, you cannot take a picture even if 
you press the camera’s shutter button. Also, the camera’s LCD monitor 
may turn off.
Even if MOV-format movies are displayed in the list, they cannot be 
saved to a smartphone.
The wireless connection will stop if you set the camera’s power to 
<2> or open the card slot cover or battery compartment cover.
When saving RAW images to a smartphone, they are saved as JPEG 
images.
While connected, the camera’s auto power off does not function.
While connected, disabling the smartphone’s power saving function is 
recommended.