Canon EOS REBEL T7I Wi-Fi (Wireless Communication) Function Instruction Manual page 30

Operating the Camera Using a Smartphone
When the Wi-Fi connection is terminated while recording a movie with

remote shooting, the camera responds as follows:
• When the power switch is set to <k>, movie shooting continues.
• When the power switch is set to <1>, movie shooting stops.
When the power switch is set to <1> and the movie mode is set using

Camera Connect, you cannot shoot by operating the camera.
With a Wi-Fi connection to a smartphone established, certain functions

are unavailable.
In remote shooting, the AF speed may become slower.

Depending on the communication 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 Wi-Fi connection will be terminated if you set the camera's power to

<2> or open the card slot cover or battery compartment cover.
RAW images cannot be saved to a smartphone. When a RAW image is

selected, it will be saved as a JPEG image.
With a Wi-Fi connection established, the camera's auto power off does

not function.
With a Wi-Fi connection established, disabling the smartphone's power

saving function is recommended.
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