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Manual Optical Slave Modes S1/S2
In S2 mode, the slave will ignore any pre-flash and will fire on the second burst of light.
Note:
Pre-flash is used to help the camera meter or focus.
To set the VC-310N to manual optical slave mode S1/S2, follow these steps:
1. Press the Mode button repeatedly until the S1 or S2 indicator appears on the LCD.
2. Press the Set button to highlight the output level.
3. Use the left and right arrows to adjust the output level from 1/1 to 1/128.
4. Press the Set button to confirm your settings.
Warning:
Some cameras, when set to red-eye reduction, will emit a series of quick flashes. This may not work
properly with any slave mode. We suggest you avoid using red-eye reduction when the VC-310N acts as a
slave.