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’ aperture 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.
28.2Slow-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 shoe, 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.