Nikon D3100 User Manual page 162

A
Shutter Speeds Available with the Built-in Flash
Shutter speed is restricted to the following ranges when the built-in flash is used:
Mode
i, p, n, P, A
o
A
Aperture, Sensitivity, and Flash Range
Flash range varies with sensitivity (ISO equivalency) and aperture.
Aperture at ISO equivalent of
100 200
1.4 2
2 2.8
2.8 4
4 5.6
5.6 8
8 11
11 16
16 22
z
70
Shutter speed
1 1
/ – / s
200 60
1
/ –1 s
200
400 800 1600
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 — —
Mode
k, S
M
3200 m
8 1.0–8.5
11 0.7–6.0
16 0.6–4.2
22 0.6–3.0
32 0.6–2.1
— 0.6–1.5
— 0.6–1.1
— 0.6–0.7
Shutter speed
1
/ –30 s
200
1
/ –30 s, bulb
200
Range
ft.
3ft. 3in.–27ft. 11n.
2ft. 4in.–19ft. 8in.
2ft.–13ft. 9in.
2ft.–9ft. 10in.
2ft.–6ft. 11in.
2ft.–4ft. 11in.
2ft.–3ft. 7in.
2ft.–2ft. 4in.