Flash Sync Mode Features

Five flash sync modes can be selected for desired photographic effect depending on the conditions when using the built-in Speedlight. In rJ and

~~ modes, flash is not available even when the subject is dark or backlit.

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Set the flash sync mode by rotating the Command Dial while pressing the flash sync mode button O .

B:Front-Curtain Sync (Normal Sync)

Set the flash sync mode to Front-Curtain Sync for normal flash photography. The camera's shutter speed is automatically set to 1/90 sec. for flash photography in 8 , 2 ,

~, P or A exposure mode.

~: Slow Sync

Slow Sync can be used in ~, P or A exposure mode. Normally, the camera's shutter speed is automatically set to 1/90 sec. for flash photography. However, for shooting nighttime scenes, Slow Sync uses a slower shutter speed (down to maximum of 30 sec., 1 sec. in ~) to bring out background details using all of the available light.

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Nikon 3699, 3700, 55 instruction manual Flash Sync Mode Features, ~ , P or a exposure mode