Nikon SB 800 Instruction Manual - Page 55

Determine the guide number according to

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Detailed operation 2 Press the a button to display q. 3 Press the g button to highlight the flash output level display, then press the e or f button to increase or decrease the values. • The available range of the flash output level is between 1/8 and 1/128. 4 Press the g button. • The flash output level is set, then the frequency display is highlighted. 5 Repeat the procedures above to set the frequency and the number of repeating flashes per frame. Frequency (Hz) Number of repeating flashes per frame 6 Determine the guide number according to the flash output level and zoom-head position set, then calculate the correct aperture from the guide number and the shooting distance. Finally set this aperture on the SB-800. • Refer to "Guide number table" (p. 42) and "Determining the aperture and flash output level in the Manual mode" (p. 42). • For cameras compatible with CLS, digital SLRs not compatible with CLS, cameras in Groups I and II with CPU lenses and COOLPIX cameras compatible with i-TTL, set the SB-800's aperture on the camera. You cannot set the aperture on the SB-800 directly. • If the ISO sensitivity is correctly set, the flash shooting distance appears on the LCD panel, matching the flash output level and aperture as set. 49

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49
2
Press the
a
button to display
q
.
3
Press the
g
button to highlight the flash output
level display, then press the
e
or
f
button to
increase or decrease the values.
•
The available range of the flash output level is
between 1/8 and 1/128.
4
Press the
g
button.
•
The flash output level is set, then the frequency
display is highlighted.
5
Repeat the procedures above to set the
frequency and the number of repeating flashes
per frame.
Frequency (Hz)
Number of repeating flashes per frame
6
Determine the guide number according to the
flash output level and zoom-head position set,
then calculate the correct aperture from the guide
number and the shooting distance. Finally set this
aperture on the SB-800.
•
Refer to “Guide number table” (p. 42) and
“Determining the aperture and flash output level in
the Manual mode” (p. 42).
•
For cameras compatible with CLS, digital SLRs not
compatible with CLS, cameras in Groups I and II with
CPU lenses and COOLPIX cameras compatible with
i-TTL, set the SB-800’s aperture on the camera. You
cannot set the aperture on the SB-800 directly.
•
If the ISO sensitivity is correctly set, the flash shooting
distance appears on the LCD panel, matching
the flash output level and aperture as set.
Detailed operation