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Press MENU and select "Display Mode"
Select "Capture" under "Display Mode"
Select "Electronic Level" under "Capture"
Here is how it looks like under "Electronic Level" preview
Now let's see how it's actually done~~~
Press MENU and select "Display Mode"
Select "Capture" under "Display Mode"
Select "Electronic Level" under "Capture"
Here is how it looks like under "Electronic Level" preview