Canon PowerShot SX70 HS Digital Camera - Manual (Page 186)

Configuring Auto Rotation of Vertical
Images
You can change the auto rotation setting that straightens images shot in
vertical orientation when they are displayed.
1
[Auto rotate]
On
Automatically rotate images during playback on both the
camera and computers.
On
Automatically rotate images during playback on
computers.
Off Do not automatically rotate images.
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