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ADVANCED OPERATION FOR THE BUILT-IN FLASH
4.Metered Manual Mode
• When using the built-in flash in the Metered Manual Mode,
any combination of aperture and shutter speed slower than
1/100 can be set. In this mode, the exposure of the
background can be controlled by the manual exposure while
the flash properly exposes the foreground subject.
1. Calculating the flash effective range according to the camera-
to-subject distance.
Maximum flash distance = Guide Number ÷ Selected aperture
Minimum flash distance = Maximum flash distance ÷ 5*
✍
MEMO
• When the distance to the subject is less than 0.7m (2.3ft), the flash
cannot be used. If the flash is used less than 0.7m, it causes vignetting
in the picture corners, light is distributed unevenly and the picture may
be over exposed.
• *The value 5 used in the formula above is fixed value applied to the
built-in flash in this camera.
The guide number (GN) depends upon the film speed used as
shown below.
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