Canon 970 IS - Manual (Page 186)

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When the camera is held vertically to shoot, the Intelligent
Orientation sensor judges the upper end to be “up” and the
lower end to be “down”. It then regulates the optimal white
balance, exposure and focus for vertical photography. This
function operates regardless of the on/off status of the Auto
Rotate function.
Resetting Settings to Their Default
Values
1
Select [Reset All].
1. Press the button.
2. Use the or button to select the
menu.
3. Use the or button to select
[Reset All].
4. Press the button.
2
Make settings.
1. Use the or button to select
[OK].
2. Press the button.