Canon EOS 7D - Manual (Page 49)

49
The grid and electronic level can be displayed to help keep the camera
aimed straight. The grid is displayed in the viewfinder, and the
electronic level is displayed on the LCD monitor.
1
Select [VF grid display].
Under the [6] tab, select [VF grid
display], then press <0>.
2
Select [Enable].
Turn the <5> dial to select [Enable],
then press <0>.
The grid will be displayed in the
viewfinder.
Displaying the Grid and Electronic Level
Displaying the Grid
The grid can also be displayed during Live View shooting and movie
shooting (p.140, 160).