Canon EOS-1D X Mark III Advanced User's Manual page 14

7.
Focus on the subject (
Look through the viewfinder and center the subject on the screen.
Press the shutter button halfway, and the camera will focus on the
subject.
8.
Take the picture (
Press the shutter button completely to take the picture.
9.
Review the picture.
The image just captured will be displayed for approx. 2 sec. on the
screen.
To display the image again, press the <
To shoot while looking at the screen, see
).
).
Live View
14
> button ( ).
Shooting.