Olympus E-420 - Manual (Page 72)

7
Flash s
h
ooting
72
EN
Manual flash
This allows the built-in flash to output a fixed amount of light. To shoot with manual flash, set the
f-number on the lens based on the distance to the subject.
ISO sensitivity
Setting method
• Not all flash modes may be available depending on the shooting mode. For details refer to
“Flash modes that can be set by shooting mode” ( gP. 124).
Ratio of amount of light GN: Guide number (Equivalent to ISO 100)
FULL (1/1) 12
1/4 6
1/16 3
1/64 1.5
ISO value 100 200 400 800 1600
ISO sensitivity 1.0 1.4 2.0 2.8 4.0
Direct button #j
Super control panel i p: [FLASH MODE]
Calculate the f-number on the lens using the following formula.
Aperture (f-number) =
GN x ISO sensitivity
Distance to the subject (m)
FLASH MODE
arge
Normal
OFF
# button
j