Bolt vs-570s, User Manual

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| Using the VS-570 as a Wireless Master
Using the VS-570 as a Wireless Master
The VS-570 can be used as an optical wireless TTL master flash, enabling you to remotely set and control your
wireless slave flash units from the VS-570 while maintaining automatic TTL functionality. The VS-570 offers
two wireless TTL master modes, CL1 and CL2, which allow you to control up to two groups of flashes and
adjust power output in ratios.
In CL1 mode, only the master and group A fire, and power output for the two is set at a ratio. For example, if
the ratio is set at 2:1, the master fires at twice the power of group A.
In CL2 mode, the master, group A, and group B fire. As in CL1 mode, power output is set at a ratio. For
example, if the master is set to 8, group A is set to 4, and group B is set to 1, then the ratio will appear as
8:4:1. The master will fire at twice the power of group A, and group A will fire at four times the power of
group B.