Nikon SB-28 - Manual (Page 49)

FP High-Speed Flash sync
% in Manual Flash ƒ mode
For F5, F100, F90X/N90s, F90-Series/N90
The SB-28 allows you to use faster shutter speeds for flash
synchronization. With FP High-Speed Flash sync
%, the flash emits light
at an extremely rapid rate, while the shutter curtains travel to expose the
film. This enables you to use a faster shutter speed as well as a wider
aperture to achieve shallower depth of field to blur the background.
• Attach the SB-28 to the camera and turn on both the SB-28 and the camera, then
set the SB-28 to FP High-Speed Flash sync
%
.
1 Set the exposure mode to Manual (M).
2
Set the aperture.
—With Nikkor lenses with a built-in CPU: Rotate the command dial on the
camera or the lens aperture ring (for F90X/N90s, F90-Series/N90
cameras) as you watch the indicator bar
¡ on the LCD panel change to
match the shooting distance.
—With Nikkor lenses without a built-in CPU: Press the
{ or } button to
change the aperture on the LCD panel. Then set the same aperture on
the lens aperture ring.
3 Set the shutter speed.
—Set the shutter speed between 1/250 and 1/4000 sec.
• The guide number for FP High-Speed Flash sync
% varies with the
selected shutter speed and is less than that for regular flash
synchronization. (See page 51 on
% guide numbers.)
• In the
% mode, when taking flash photographs with a shutter speed
slower than 1/250 sec., it is recommended to use normal flash operation
because the guide number is less in the
% mode.
• If you set the SB-28’s flash mode to a mode other than Manual
ƒ %
with your camera’s shutter speed set higher than 1/250 sec., the shutter
speed is automatically set to 1/250 sec.
49
Camera settings