Canon EOS 7D Mark II Guía De Instrucciones página 66

Q Displaying the Electronic Level
3 Displaying the Electronic Level in the Viewfinder
An electronic level can be displayed on the upper part of the viewfinder.
Since this can be displayed while you shoot, you can correct the
camera tilt while shooting.
64
Select [Viewfinder display].
1
Under the [52] tab, select
[Viewfinder display], then press
<0>.
Select [Viewfinder level].
2
Select [Show].
3
Press the shutter button halfway.
4
The electronic level will be displayed
in the viewfinder.
This also works with vertical shooting.
1°
1°
7°
7.5° or greater
4° or greater