Canon MR-14EXl Instructions Manual page 44

Setting Up a Wireless Flash System
Press the master unit's pilot lamp
(test firing button) to fire a test
flash.
~ The master unit and slave unit should
fire (at 1/64 output).
• If the slave unit does not fire,
reposition it closer to the master unit
and more toward the front and center
of the master unit. Then fire a test
flash again.
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