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Olympus E-420 - Page 72

Olympus E-420
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7
Flash shooting
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” (
g
P. 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
1.01.42.02.84.0
Direct button
#j
Super control panel
ip
: [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

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