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3 Setting the FlashN
266
Shutter synchronization
Normally, set this to [1st curtain] so that
the flash fires immediately after the
exposure starts.
If [2nd curtain] is set, the flash will fire right before the shutter closes.
When this is combined with a slow shutter speed, you can create a trail
of light such as from car headlights at night with a more natural feel.
With second-curtain synchronization, two flashes will be fired: once
when you press the shutter button completely, and once immediately
before the exposure ends.
2 Flash exposure compensation
You can set flash exposure
compensation up to ±3 stops in 1/3-stop
increments.
Wireless functions
With wireless flash photography (via
optical transmission), you can use the
built-in flash to wirelessly control external
Speedlites.
For details, see “Using Wireless Flash”
on page 272.
When using second-curtain synchronization, set the shutter speed to 1/25
sec. or slower. If the shutter speed is 1/30 sec. or faster, first-curtain
synchronization will be applied automatically even if [2nd curtain] is set.