The picture is underexposed or overexposed.
If there was a highly reflective object (glass window, etc.) in
the picture, use FE lock).
If the subject looks very dark or very bright, set flash
exposure compensation.
When high-speed sync is set, the effective flash range is
shorter.
Position the slave unit closer to the subject.
When using autoflash shooting with three firing groups A, B
and C, do not fire with firing group C pointed toward the main
subject.
When shooting with a different flash mode setting for each
firing group, do not fire with multiple firing groups set to
<ETTL> or <Ext.A> pointed toward the main subject .
The picture is very blurred.
When the shooting mode is set to <AV> and the scene is
dark, slow sync is enabled automatically (the shutter speed
becomes slower). Use a tripod, or set the shooting mode to <P>
or fully automatic mode. Note that you can also set the sync
speed in [Flash sync. speed in Av mode]
Cannot release from a slave unit.
When an EOS camera which was released up to 2011, has
remote control terminal and is compatible with E-TTL II/E-TTL
autoflash is used to perform remote release from a slave unit or
when it has been set as the slave unit during linked shooting, the
shutter release cable “ LS-MINIB/C3 “ or “ LS-MINIB/C1 ”
(sold separately) is necessary.
31
Troubleshooting Guide
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