Using Your Vs-570C As A Wireless Master - Bolt VS-570C User Manual

Channels: Master and slave flash units exchange data through channels. On the VS-570C, four channels (1, 2,
3, 4) are available. You can select the channel you prefer for communication between the master and remote
flash units. You can use this option to prevent your remote units from being triggered by the master unit of
another photographer working with the same type of system nearby.
Groups: With the VS-570C's wireless system, you can assign remote flash units to any one of three groups (A,
B, or C) and set the mode and power ratio for each group.

Using Your VS-570C as a Wireless Master

The VS-570C can be used as a wireless TTL or manual master, enabling you to set and control all functions of
your wireless slave flash units from the VS-570C.
In TTL master mode, the VS-570C lets you control your slave flashes remotely while maintaining automatic TTL
functionality.
In manual master mode, you can remotely control and manually adjust the power of your slave flashes via the
VS-570C.
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32 Using Your VS-570C as a Wireless Master