Using The Eyepiece Cover; F Using A Remote Switch - Canon EOS 5D Mark III Instruction Manual

Using the Eyepiece Cover

When you use the self-timer or shoot bulb exposures and do not look
through the viewfinder, stray light entering the viewfinder can cause the
image to come out dark. To prevent this, use the eyepiece cover (p.27)
attached to the camera strap.
During Live View shooting and movie shooting, attaching the eyepiece
cover is not necessary.

F Using a Remote Switch

You can connect the Remote Switch RS-80N3 or Timer Remote
Controller TC-80N3 (both sold separately) or any EOS accessory
equipped with an N3-type terminal to the camera for shooting (p.356).
To operate the accessory, refer to its instruction manual.
Remove the eyecup.
1
While grasping both sides of the
eyecup, slide it upward to remove.
Attach the eyepiece cover.
2
Slide the eyepiece cover down into
the eyepiece groove to attach it.
Open the terminal cover.
1
Connect the plug to the remote
2
control terminal.
Connect the plug as shown in the
illustration.
To disconnect the plug, grasp the
silver part and pull.
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