122
l
A
Shutter Speeds Available with the Built-in Flash
The following shutter speeds are available with the built-in flash.
Mode
Shutter speed
Mode
Shutter speed
i
,
P
,
A
,
k
,
p
,
s
,
w
,
g
1
/
250
–
1
/
60
s
S
1
/
250
–30 s
n
,
0
1
/
250
–
1
/
125
s
M
1
/
250
–30 s,
A
o
1
/
250
–1 s
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 2016-pixel RGB sensor and are analyzed in combination with range
information from 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
149). 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
,
246). The information display shows the flash control mode for
the built-in flash as follows:
Flash sync
Auto FP (
i-TTL
—
Manual
—
Repeating flash
—
Commander mode
Summary of Contents for D7100
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