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52
Flash shooting
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Flash off
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The flash does not fire.
In this mode, the flash can be used as an AF illuminator when it is raised.
g
"AF illuminator" (P. 75)
Flash synchronization speed
Shutter speed can be changed when the built-in fla
sh fires.
g
"Speed synchronization" (P. 126)
Manual flash
This allows the built-in flash to output a fixed amount of light. With [MANUAL
FLASH] set to [ON] (
g
P. 125), the amount of light can be selected in the
flash mode setting.
To shoot with manual flash, set the f value on the lens based on the distance
to the subject.
Calculate the f value on the lens using the following formula.
Aperture (f value) =
ISO sensitivity
Ratio of amount of light
GN: Guide number
Built-in flash
F-36 external flash
(optional)
FULL (1/1)
13
36
1/4
6
18
1/16
3
9
1/64
1.5
4.5
ISO value
100
200
400
800
1600
Correction coefficient
1.0
1.4
2.0
2.8
4.0
GN x ISO sensitivity
Distance to the subject (m)
s0004_e_Advanced.book Page 52 Tuesday, September 27, 2005 4:15 PM