Canon EOS 90D DSLR Camera with 18-135mm Lens - Manual (Page 510)

510
The Auto Rotation of Vertical Images
You can change the auto rotation setting that
straightens images shot in vertical orientation when
they are displayed.
1 Select [ 5 : Auto rotate].
2 Select an item.
 On
z D
Automatically rotates images for display on both the camera and
computers.
 On
D
Automatically rotates images only for display on computers.
 Off
o
Images captured with auto rotation set to [Off ] will not rotate during playback
even if you later set auto rotation to [On] .
o If a picture is taken while the camera is pointing up or down, automatic rotation
to the proper orientation for viewing may not be performed correctly.
o If images are not rotated automatically on a computer, try using EOS software.