Nikon D7100 User Manual
Page 151
123
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Aperture, Sensitivity, and Flash Range
Flash range varies with sensitivity (ISO equivalency) and aperture.
Aperture at ISO equivalent of
Approximate range
100
200
400
800
1600
3200
6400
m
ft
1.4
2
2.8
4
5.6
8
11
0.7–8.5
2 ft 4 in.–27 ft 11 in.
2
2.8
4
5.6
8
11
16
0.6–6.0
2 ft–19 ft 8 in.
2.8
4
5.6
8
11
16
22
0.6–4.2
2 ft–13 ft 9 in.
4
5.6
8
11
16
22
32
0.6–3.0
2 ft–9 ft 10 in.
5.6
8
11
16
22
32
—
0.6–2.1
2 ft–6 ft 11 in.
8
11
16
22
32
—
—
0.6–1.5
2 ft–4 ft 11 in.
11
16
22
32
—
—
—
0.6–1.1
2 ft–3 ft 7 in.
16
22
32
—
—
—
—
0.6–0.8
2 ft–2 ft 7 in.
The built-in flash has a minimum range of 0.6 m (2 ft).
In mode P, the maximum aperture (minimum f-number) is limited according to ISO
sensitivity, as shown below:
Maximum aperture at ISO equivalent of:
100
200
400
800
1600
3200
6400
2.8
3.5
4
5
5.6
7.1
8
If the maximum aperture of the lens is smaller than given above, the maximum value for
aperture will be the maximum aperture of the lens.
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See Also
See page 125 for information on locking flash value (FV) for a metered subject before
recomposing a photograph.
For information on auto FP high-speed sync and choosing a flash sync speed, see Custom
Setting e1 (Flash sync speed, 0 244). For information on choosing the slowest shutter
speed available when using the flash, see Custom Setting e2 (Flash shutter speed, 0 245).
For information on flash control and using the built-in flash in commander mode, see
Custom Setting e3 (Flash cntrl for built-in flash, 0 246).
See page 303 for information on using optional flash units.