Canon MT-26EX-RT Macro Twin Lite - Manual (Page 90)

90
a : Multiple Flash Photography with Slave C Added
Shooting with firing group C pointed directly toward the main subject may
result in overexposure.
On the models listed below, wireless multiple flash shooting adding slave
C is not available when the <
a > mode is set. When the < q > mode
is set, wireless multiple flash shooting can be performed on all type-A
cameras (p.2).
EOS Elan II/Elan II E/50/50E, EOS REBEL XS N/REBEL G II/3000N/66,
EOS REBEL 2000/300, EOS REBEL G/500N, EOS IX, EOS IX Lite/IX 7
If there is a fluorescent light or computer monitor near a slave unit, the
presence of the light source may cause the slave unit to malfunction and
fire inadvertently.
You can press the depth-of-field preview button on the camera to fire the
modeling flash (p.34).
If the slave unit’s auto power off takes effect, press the master unit’s test
flash button to turn on the slave unit. Note that the test flash cannot be
performed while the camera’s metering timer, etc. is operating.