Set the same channel no. as the master unit, Set the slave id to c – Canon MR-14EX User Manual

Page 43

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Setting Up a Wireless Flash System

Setting the 550EX as a Slave Unit

To set the 550EX as a slave unit, refer to page 53 in the 550EX’s

Instructions booklet.

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ETTL El Zoom ?Wmm

Set the same channel No. as the

master unit.

Set the slave ID to C.

Positioning and Test Firing

After setting up the wireless flash
system, position slave C as
shown in the left diagram.

• When indoors, position the slave unit

within 5 meters from the master unit.
When outdoors, position it within 3

meters. The slave unit should also be

within an 80-degree angle in front of
the master unit.

• Face the slave unit's transmission

sensor toward the master unit.

• Indoors, the transmission signals can

bounce off the walls so the slave unit's
positioning can be a little more flexible.

• Do not place any objects between the

master unit and slave unit which may

obstruct the wireless transmission.

Check that the master unit's pilot

lamp is lit and that slave C is

flash-ready.

► When the slave unit is flash-ready, its

AF-assist light will blink.