Wireless Flash Photography: Optical Transmission - Canon 0585C006 Instruction Manual

Wireless Flash Photography:
This chapter describes wireless flash shooting using the
optical transmission wireless receiver function.
For the accessories required for optical transmission
wireless shooting, see the system map (p.90).
When the camera's shooting mode is set to a fully automatic
mode or a Basic Zone mode, the operations in this chapter are
not available. Set the camera's shooting mode to <d>, <s>,
<f>, <a>, or <F> (Creative Zone mode).
The optical transmission wireless receiver function is available

with both Speedlite 430EX III-RT and Speedlite 430EX III.
You can wirelessly control a 430EX III-RT/430EX III set as an

optical transmission wireless receiver unit using a device
equipped with the optical transmission wireless sender
function (p.91).
The device equipped with the optical transmission wireless

sender function is called the "sender", and a 430EX III-RT/
430EX III that is controlled wirelessly is called a "receiver".
Optical Transmission
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