Canon EOS Rebel T5 18-55 IS II Kit - Manual (Page 211)

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Q Quick Control for Playback
To rotate an image, set [51: Auto rotate] to [OnzD]. If [51: Auto rotate]
is set to [OnD] or [Off], the [b Rotate image] setting will be recorded to
the image, but the camera will not rotate the image for display.
Pressing the button during the index display will switch to the
single-image display and the Quick Control icons will appear. Pressing
the button again will return to the index display.
For images taken with another camera, the options you can select may
be limited.
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