Canon EOS 5DS - Attaching and Detaching a Lens

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The camera is compatible with all Canon EF lenses. The camera
cannot be used with EF-S or EF-M lenses.
1
Remove the caps.
Remove the rear lens cap and the
body cap by turning them as shown
by the arrows.
2
Attach the lens.
Align the red dots on the lens and
camera and turn the lens as shown by
the arrow until it clicks in place.
3
Set the lens’s focus mode switch
to <AF>.
<AF> stands for autofocus.
<MF> stands for manual focus.
Autofocus will not operate.
4
Remove the front lens cap.
Attaching and Detaching a Lens
Attaching a Lens