Canon Speedlite 600EX II-RT Manual (en)

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10
Nomenclature
Catchlight panel (retracted) (p.35)
Wide panel 
External power 
source socket (p.122)
Contacts
Locking pin
Optical transmission 
wireless sensor
External metering sensor 
Color filter detector
Flash head
(Light-emitting 
unit)
Bounce adapter detector
Terminal cover
Bracket
mounting hole
PC terminal
AF-assist beam emitter 
Not equipped with remote release terminal (Release Cable SR-N3 cannot 
be used).