Canon D20 - Manual (Page 72)

72
Grid lines can be displayed on the screen for vertical and horizontal reference
while shooting.
Configure the setting.
Press the n button, choose [Grid Lines]
on the 4 tab, and then choose [On] (p. 42).
X Once the setting is complete, grid lines are
displayed on the screen.
To restore the original setting, repeat this
process but choose [Off].
Helpful Shooting Features
Displaying Grid Lines
Still Images Movies
• Grid lines are not recorded in your shots.