Olympus FL-50 - Manual (Page 8)

<MANUAL>
In this mode, the flash is emitted according to the guide number (GN) setting.
Displayed according to the
focal distance of the lens.
Guide number (GN)
Optimum shooting distance
1. The control panel shows the current guide number (GN)
together with the optimum shooting distance according to
the camera setup.
2. Turn dial A to set the guide number (GN).
(This is also possible by turning dial B.)
Set the guide number (GN) so that the optimum shooting
distance is equal to the subject distance.
When the optimum shooting distance is 0.6 m (0.5 m in
case of close-up flash) or less, the displayed figure blinks
to warn that the subject is located outside the flash light
emission area.
The optimum shooting distance varies according to the
camera setup (ISO speed, lens iris (F), lens focal distance
(ZOOM), and shutter speed). See page 64 for details.
Memo: Assuming that the ISO speed is 100, the optimum shoot-
ing distance can be calculated with the following formula.
Optimum shooting distance = Guide number (GN)/Lens iris (F)
(See page 64.)
Light intensity adjustment
The flash light intensity can be adjusted between +3 and –3.
Light intensity adjustment value
Light intensity adjustment
The flash light intensity can be adjusted between +0.7 and –0.7.
The light intensity adjustment must be set to ON in the
custom setup operation (page 61).
• The indicator appears in the control panel.
1. Turn dial B to select a light intensity adjustment value in
the following steps.
0 +0.3 +0.7
0 –0.3 –0.7
2. The display shows the light intensity adjustment value ex-
cept when the value is 0, in which case the display does not
show the guide number (GN) or optimum shooting distance.
3. Even if the camera’s flash adjustment mode is selected,
only the FL-50’s adjustment setting will work. The camera’s
setting will not work.
[Example]
Light intensity adjustment value
The light intensity adjustment must be set to ON in the
custom setup operation (page 61).
• The indicator appears in the control panel.
1. Turn dial B to select a light intensity adjustment value in
the following steps.
(This selection is also possible with dial A.)
0 +0.3 +0.7 +1.0 ... +3.0
0 –0.3 –0.7 –1.0 ... –3.0
2. The display shows the light intensity adjustment value ex-
cept when the value is 0, in which case the display does
not show the light control range.
3. If the camera’s flash adjustment mode is selected, the
actual flash light intensity will be the total of the light
intensity adjustment value set on the FL-50 and that
set on the camera. The light intensity adjustment value
displayed is that of the FL-50 only.
[Example]
Selected
adjustment value Adjustment value
displayed on FL-50 Actual light intensity
adjustment
FL-50 +0.3
+0.3 +0.6
Camera +0.3
Selected
adjustment value Adjustment value
displayed on FL-50 Actual light intensity
adjustment
FL-50 +0.3
+0.3 +0.3
Camera +0.3