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28.2 Slow-sync Flash Photography 28 FLASH PHOTOGRAPHY
point to the right of 1/60 sec. Set the same aperture on the lens as that set on the
Speedlite.
With the power winder or motor drive attached and the lens’ ap erture ring set
to the ”A’ mark for shutter-priority AE, the camera will automatically switch the
shutter speed to 1/90 sec. and the aperture to the f/stop which you have set on the
Speedlite as long as the shutter dial is not on ”B.”
After the shutter is released, the camera automatically switches back to the speed
actually set on the shutter dial until the Speedlite’s pilot lamp glows again.
28.2 Slow-sync Flash Photography
With Speedlites 199A, 533G and 577G, you can select a shutter speed slower than
1/90 sec. The advantage of slow-sync flash photography is that the background in
the picture will be lighter. You can choose among three working apertures on each
of these Speedlites for optimum control of depth of field. For this technique, first
set the AUTO/MANU switch of the Speedlite to ”MANU.” Then turn the camera’s
shutter dial to any speed from 1/60 sec. to 8 seconds. The picture will be taken at
the speed you have set on the shutter dial and the flash will fire at the release of the
first shutter curtain. If the shutter dial is set to a speed from 1/2000 to 1/125sec.
or ”S”, the shutter speed will automatically switch to 1/90 sec. As in normal AE
flash photography, the meter needle will point to the aperture which you have set
on the Speedlite as soon as the pilot lamp lights up. Simply turn the aperture ring
until the aperture needle matches the meter needle.
With the motor drive or power winder attached and the lens’ aperture ring set to
the ”A” mark, the aperture will be controlled automatically as well.
IMPORTANT
Before mounting a flash unit, make sure its power switch is OFF.
Note
If using a viewfinder which does not have an accessory sho e, such as the Waist-Level
Finder FN connect the Speedlite to the camera’s PC socket via a synchronization
cord. Then turn the shutter dial to ”t” (1/90 sec.) and set the same aperture on
the lens as that set on the flash unit.
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