Canon 580EXII Instruction Manual page 10

Attaching to the Camera
"I
Attach the Speedlite.
• Slip the Speed lite's mounting foot into
the camera's hot shoe all the way.
Secure the Speed lite.
• On the mounting foot, slide the lock
lever to the right.
..- When the lock lever clicks in place, it
will be locked.
Detach the Speed lite.
• While pressing the lock-release
button, slide the lock lever to the left
and detach the Speed lite.
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