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Flash shooting
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Basic shooting functions
Slow synchronization (#SLOW1/#SLOW2/HSLOW)
The slow synchronization flash is designed for slow shutter speeds. Normally, when
shooting with a flash, shutter speeds cannot go below a certain level to prevent
camera movement. But when shooting a night scene background, fast shutter
speeds can make the background too dark. Slow synchronization flash allows both
a slow shutter speed for the background and a flash for the subject. Since the shutter
speed is slow, make sure you stabilize the camera by using a tripod, otherwise,
camera movement may cause the picture to be blurred. The factory default setting
is [#SLOW1]. You can change the setting.
g“Slow synchronization” (P.44)
1st curtain (front curtain) #SLOW1
Usually, regardless of the shutter speed, the flash fires right after the shutter fully
opens. This is called 1st curtain. Unless you change it, this is how the flash always
fires.
2nd curtain (rear curtain) #SLOW2
With 2nd curtain, the flash fires just before the shutter closes. Changing the flash
timing can create interesting effects in your picture, such as expressing the
movement of a car by showing the tail-lights streaming backwards. The slower the
shutter speed, the better the effects turn out.
The slowest possible shutter speed depends on the shooting mode, ISO and noise
reduction setting.
rear curtain
2nd curtain flash fires
Shutter closes
1st curtain flash fires
front curtain
Shutter button fully pressed
When the shutter speed is set to 4 sec.
4 sec.
4 sec.
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d4250_e_00_0_bookfile.book Page 40 Friday, December 24, 2004 11:45 AM