Canon EOS REBEL T6i Instruction Manual page 183

Setting [E-TTL II meter.] to [Evaluative] is recommended.

Even though the firing of the built-in flash is disabled when

[EasyWireless] is set, it will still fire a small flash in order to control the
slave unit. Depending on shooting conditions, the flash fired to control
the slave unit may appear in the picture.
Firing a test flash is not possible with the slave unit.

Select [Built-in flash settings].
4
Select [Built-in flash settings], then

press <0>.
Select [EasyWireless].
5
For [Built-in flash], select

[EasyWireless], then press <0>.
Set [Channel].
6
Set the transmission channel (1-4) to

the same one as the slave unit.
Take the picture.
7
Set the camera and take the picture

in the same way as with normal
shooting.
Exit the wireless flash shooting.
8
For [Built-in flash], select

[NormalFiring].
Easy Wireless Flash ShootingK
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