Manual - Olympus MACRO FLASH SYSTEM Instructions Manual

<MANUAL>
In this mode, the flash is emitted according to the light intensity setting.
MACRO FLASH CONTROLLER
FC-1
LIGHT
RATIO GN/
Light intensity setting
1.
The control panel shows the light intensity ratio.
When both of the two flashes are used, their combined
MODE
light intensity is displayed.
LAMP
Light intensity ratio: Ratio of the current light intensity with
AUTO
CHECK
respect to the full flash light intensity.
TEST/
CHARGE
* The light intensity ratio display can be changed to the guide number
(GN). display in the Custom Setup operation (page 98).
POWER
2.
Turn dial A to set the desired light intensity ratio.
The available light intensity ratios are 1/1, 1/2, 1/4, 1/8,
1/16, 1/32, 1/64, 1/128, 1/256 and 1/512.
• The amount of illumination from the Twin Flash that is ap-
plied to the subject varies depending on such conditions
as whether one flash unit is used or two flash units are
used, angle adjustment and light ratio. Set the appropriate
iris (F) or light intensity ratio by referring to the guide num-
ber charts.
When using two flashes (Combined guide number)
Light inten-
sity ratio
GNm
GNft
When using only one flash
Light inten-
sity ratio
GNm
GNft
1/1 1/2 1/4 1/8 1/16 1/32 1/64 1/128 1/256 1/512
22 16 11 8.0 5.6
72 52 36 26 18
1/1 1/2 1/4 1/8 1/16 1/32 1/64 1/128 1/256 1/512
16 11 8.0 5.6 4.0
52 36 26 18 13
4.0 2.8 2.0 1.4 1.0
13 9.2 6.6 4.6 3.3
2.8 2.0 1.4 1.0 0.7
9.2 6.6 4.6 3.3 2.3