Canon EOS 5D Mark IV Instruction Manual page 93

Ending Image Transfer
If necessary, also read "NFC Function Cautions" (p.25).

During the image transfer operation, a picture cannot be taken even if

the camera's shutter button is pressed.
Images cannot be sent using the NFC function while the camera is

connected to another device wirelessly. In addition, the camera cannot
be connected to multiple smartphones at the same time.
Even if MOV-format movies are displayed in the list, they cannot be

saved to a smartphone.
You can cancel the image transfer by selecting [Cancel] during the

transfer.
You can select up to 50 files at a time.

While connected, disabling the smartphone's power saving function is

recommended.
Settings for image transfer using the NFC function are not saved on the

camera.
When you reduce the image size, all images to be sent at the same time

are resized. Note that movies or still photos that are smaller than b size
are not reduced.
When you use a battery to power the camera, make sure it is fully

charged.
While connected, the camera's auto power off does not function.

Sending Images to a Smartphone
To end the image transfer, press the
<M> button on the image transfer
screen.
If you have established the

connection with the NFC function
while playing back an image, the
connection termination screen will
appear. Select [OK] to terminate the
connection.
If you have sent images with the

menu or Quick Control, the previous
screen will reappear. The connection
will not be terminated.
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