Nikon D3x Manuel D’Utilisation

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The camera is equipped with an accessory shoe for attaching 
optional flash units directly to the camera and a sync terminal that 
allows flash units to be connected via a sync cable. When an 
optional flash unit is attached, the flash will fire whenever the 
shutter is released.

❚❚The Accessory Shoe

Use the accessory shoe to mount optional 
flash units directly on the camera without a 
sync cable (pg. 187). The accessory shoe is 
equipped with a safety lock for Speedlights 
with a locking pin, such as the SB-900, SB-800, 
SB-600, and SB-400.

❚❚The Sync Terminal

A sync cable can be connected to the sync 
terminal as required. Do not connect 
another flash unit via a sync cable when 
performing rear-curtain sync flash 
photography with a flash unit mounted on 
the camera accessory shoe.

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Use only Nikon Speedlights.  Negative voltages or voltages over 250 V 
applied to the accessory shoe could not only prevent normal operation, 
but damage the sync circuitry of the camera or flash.  Before using a Nikon 
Speedlight not listed in this section, contact a Nikon-authorized service 
representative for more information.