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145
THE EXPANDED GUIDE
FLASH
»
FLASH EXPOSURE
SLOW SYNC
Slow sync combines a flash image with a
motion-blurred image from the ambient light,
but front-curtain sync makes the blurred
elements run ahead of the flash image, not
behind it.
and the best chance of capturing the
subject as you see it. However, it can create
odd-looking results when dealing with
moving subjects—for these, rear-curtain
sync (see below) may be more suitable.
In P and A exposure modes, the camera
will set a shutter speed in the range 1/60–
1/200 sec. In S and M exposure modes, you
can set any shutter speed down to 30 sec.,
which means that standard flash also
encompasses Slow sync (see below).
Slow sync
This mode allows longer shutter speeds
(right up to 30 sec.) to be used in P and A
exposure modes, so that backgrounds can
be captured even in low ambient light.
Movement of the subject or camera (or
even both) can result in a partly blurred
image created by the ambient light,
combined with a sharp image where
the subject is lit by the flash. This may
sometimes be unwelcome, but can also
be used for creative effect.
This mode is also available, in a limited
form (longest exposure 1 sec.), with
Night portrait mode—here it’s labelled
Auto slow sync. You can’t select Slow
sync in S and M exposure modes, but it
isn’t necessary, as longer shutter speeds
are available anyway.
Rear-curtain sync
Rear-curtain sync triggers the flash not at
the first available moment (as front-curtain
REAR-CURTAIN SYNC
Rear-curtain sync means that the motion-
blurred elements of the image appear behind
the sharp image created by the flash.
Nikon D5300 Ch4 138-157 P2 RY.indd 145Nikon D5300 Ch4 138-157 P2 RY.indd 145 19/02/2014 16:4919/02/2014 16:49
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