Sony 4-183-746-11(1) - Manual (Page 70)

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• In this mode, ADI metering will be canceled and Pre-flash TTL metering
will be used automatically (page 43).
• High-speed sync in the P mode cannot be used when the flash is connected
with the off-camera cable FA-CC1AM (optional).
• All the flash units are at the same power level in TTL flash mode.
• During photography with off-camera cable, the wireless controller mode is
canceled automatically and you cannot use the flash photography with
lighting ratio control.