Canon EOS REBEL T8i Advanced User's Manual page 574

Sending images individually
1.
Select an image to send.
2.
Select [Send img shown].
Use the < > <
then press < >.
You can press the <
display.
In [Size to send], you can select the image sending size.
On the screen after images are sent, select [OK] to end the Wi-Fi
connection.
> keys or < > dial to select an image to send,
> button to select the image using the index
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