SIGMA EF-500 - Manual (Page 25)

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within the range of 1m/3ft~5m/16ft from the subject.
Channel Setting
In case of other people are using Wireless Flash mode near you, your flash may be connected with the
other person’s flash and your flash may fire. In this circumstance, please set the different channel for your
flash from that of the other person’s flash.
Channel setting for Master unit
1. Press the MODE button to Select the
mark.
2. Press the SEL button several times to make the channel indicator blink.
3. Press the + or – button to set the channel number. (C1 㹳 C4)
4. Press the SEL button several times to stop the blinking.
Channel setting for Slave unit
1. Press the MODE button to Select the ETTL㸤 㸤 mark.
2. Press the SEL button several times to make the channel indicator blink.
3. Press the + or – button to set the channel to the same number. (C1
㹳 C4) as the master unit.
4. Press the SEL button several times to stop the blinking.
ۋ If the channel setting number of Master and Slave are
different, the Slave will not fire. Please set the same number for Master and Slave.
Slave ID Setting
When you use several Slave units, the Slave ID can be set to distinguish a Slave unit from Main flash.
1. Press the MODE button to Select the ETTL㸤
㸤
mark.
2. Press the SEL button several times to make the Slave ID indicator blink.
3. Press the + or – button and set the ID number. (1, 2 or 3)
4. Press the SEL button, the display will stop blinking.
ۋ
If you want to all Slave units to fire at the same flash output, this setting is not necessary.
Master Flash ON/OFF Setting
You can set the Master flash unit firing ON or OFF.
Master Flash unit firing ON
1. Press the MODE button to Select the
mark.
2. Press the + or – button to indicate the mark.
Master Flash unit firing OFF
1. Press the MODE button to Select the
mark.
2. Press the + or – button to indicate the mark.
Wireless ETTL Autoflash (A type cameras only)
In this Wireless ETTL Autoflash function, the camera automatically calculates the correct exposure.
Wireless ETTL Autoflash With Flash Ratio OFF
If no flash ratio is desired, the slave ID setting is not necessary. You can set 1, 2 or 3.
All the Slave flash units will fire at the same flash output and the ETTL autoflash system controls the total flash
amount automatically, to obtain a correct flash exposure.
Master Flash unit ON + Slave Flash unit(s)
ۋ Please set the Master Flash unit as following.
1. Press the MODE button to Select the ETTL 㸤 mark.
2. Press the + or – button to indicate the mark
3. Press the SEL button several times and confirm that the flash ratio is 1:1.
ۋ If the flash ratio is indicated as or , please refer to the column of “Wireless ETTL Autoflash With Flash
Ratio ON (Two Slave Units) or (Three Slave Units)” and reset to the flash ratio to 1:1.
Preparation for Wireless Flash