Nikon D720 User Manual page 174

A
Aperture, Sensitivity, and Flash Range
Flash range varies with sensitivity (ISO equivalency) and aperture.
100 200
1.4 2
2 2.8
2.8 4
4 5.6
5.6 8
8 11
11 16
16 22
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:
100
2.8
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.
A
See Also
See page 153 for information on locking flash value (FV) for a metered
subject before recomposing a photograph.
Menu options relevant to this section are listed below.
• Custom Setting e1 (Flash sync speed): Enable or disable auto FP high-
speed sync and choose a flash sync speed (0 282)
• Custom Setting e2 (Flash shutter speed): Choose the slowest shutter
speed available when using the flash (0 283)
• Custom Setting e3 (Flash cntrl for built-in flash): Choose a flash control
mode (0 283)
150
Aperture at ISO equivalent of
400 800 1600 3200 6400 12800
2.8 4 5.6
4 5.6 8
5.6 8 11
8 11 16
11 16 22
16 22 32
22 32 —
32 — —
Maximum aperture at ISO equivalent of:
200 400
3.5 4
8 11 16
11 16 22
16 22 32
22 32 —
32 — —
— — —
— — —
— — —
800 1600
5 5.6
Approximate range
m ft
0.7–8.5 2ft 4in.–27ft 10in.
0.6–6.0 2ft–19ft 8in.
0.6–4.2 2ft–13ft 9in.
0.6–3.0 2ft–9ft 10in.
0.6–2.1 2ft–6ft 10in.
0.6–1.5 2ft–4ft 11in.
0.6–1.1 2ft–3ft 7in.
0.6–0.8 2ft–2ft 7in.
3200 6400
7.1 8
12800
10