C
–21
C
Flash Modes
Repeating Flash Mode
Camera’s LCD
Camera’s LCD
Calculate the aperture f-number from
the
fl
ash-to-subject distance and the
guide number, and set the camera’s
aperture accordingly.
To determine the f-number, see “Guide Number,
•
Aperture and Flash-to-subject Distance.” (
0
H-4)
Aperture cannot be set with the SB-910.
•
The effective flash output distance that matches the
•
flash output level and aperture is displayed.
Set the camera shutter speed.
Determine the shutter speed with the equation
•
below, and set a lower camera shutter speed than
the calculated shutter speed.
Shutter speed = number of flash firings
/ frequency of flash firings
If the number of flash firings is 10 (times) and the
•
frequency of flash firings is 5 (Hz), set the shutter
speed for longer than 2 seconds.
Bulb can be also set.
•
Con
fi
rm the
fl
ash-ready indicator is on,
and then shoot.
