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36
• When the zoom-head position is adjusted to 28mm, set M1/4 flash output level on the
SB-600, which can be obtained from GN 14/45.9 (m/ft.) corresponding to the zoom-head
position of 28mm referring to the guide number table.
• In Distance-priority manual flash operation, the correct flash output level is automatically
determined by the SB-600 according to the shooting distance, aperture and ISO
sensitivity that are set.
To calculate the shooting distance
Calculate the shooting distance (m/ft.) by using this equation and the guide
number table, according to the ISO sensitivity, aperture value, flash output level
and zoom-head position that are set:
Manual
G
flash operation
1
Set the camera’s exposure mode to Aperture-
Priority Auto (A) or Manual (M).
2
Press the
a
button until
G
appears on the
LCD panel.
3
Determine the flash output level and aperture to
match the flash shooting distance.
• For details on determining the flash output level and
the aperture, refer to “Determining the aperture and
flash output level in the Manual mode” (p. 35).
4
Press the
i
or
j
button to increase or decrease
the values.
• Refer to “Setting the flash output level” (p. 37).
5
Set the aperture on your camera or lens.
Shooting distance (m/ft.) = Guide number (GN at ISO 100; m/ft.) × ISO sensitivity factor ÷ Aperture (f/)
Manual mode