Notes on wireless flash photography
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During photography with off-camera flash units, P-TTL flash metering is automatically used instead of ADI metering.
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Flash unit software version 2.00 or later: When you use a combination of flash units that are compatible and not compatible with global shutter sync photography for multiple radio wireless flash photography including ratio control and group flash, global shutter sync photography is not available. High-speed sync photography is used instead.
To use global shutter sync photography with multiple flash units, make sure that all flash units are compatible with global shutter sync photography.
