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A Flash Control Mode
The camera supports the following i-TTL flash control modes:
• i-TTL balanced fill-flash for digital SLR: Flash emits series of nearly invisible preflashes (monitor
preflashes) immediately before main flash.
Preflashes reflected from objects in all areas of
frame are picked up by 2,016-pixel RGB sensor and are analyzed in combination with
range information from matrix metering system to adjust flash output for natural balance
between main subject and ambient background lighting.
If type G or D lens is used,
distance information is included when calculating flash output.
Precision of calculation
can be increased for non-CPU lenses by providing lens data (focal length and maximum
aperture; see 0 159).
Not available when spot metering is used.
• Standard i-TTL flash for digital SLR: Flash output adjusted to bring lighting in frame to standard
level; brightness of background is not taken into account.
Recommended for shots in
which main subject is emphasized at expense of background details, or when exposure
compensation is used.
Standard i-TTL flash for digital SLR is activated automatically when
spot metering is selected.
The flash control mode for the built-in flash can be selected using Custom Setting e3 (Flash
cntrl for built-in flash, 0 223).
The information display shows the flash control mode for
the built-in flash as follows:
Flash sync Auto FP (0 222)
i-TTL
—
Manual
—
Repeating flash —
Commander mode