Nikon D70 Manual page 110

Using the Built-in Speedlight
If the built-in Speedlight is used in continuous shooting mode, only one photograph
will be taken each time the shutter-release button is pressed.
Vibration reduction (available with VR lenses) does not take effect if the shutter-release
button is pressed halfway while the built-in Speedlight is recharging.
After the built-in Speedlight has been used for several consecutive shots, it may turn
off briefl y to protect the fl ash. The built-in Speedlight can be used again after a short
pause.
Flash Range, Aperture, and Sensitivity
Flash range varies with sensitivity (ISO equivalency) and aperture.
Aperture at ISO equivalent of
200 250 320 400 500 640 800 1000 1250
2 2.2 2.5
2.8 3.2 3.5
4 4.5 5
5.6 6.3 7.1
8 9 10
11 13 14
16 18 20
22 25 29
The minimum distance at which the built-in Speedlight can be used is 0.6 m (2´).
In P, , , , and
according to sensitivity (ISO equivalency) as shown below:
Mode 200
P, , , 2.8
5.6
For each one-step increase in sensitivity (e.g., from 200 to 400), aperture is stopped
down by half an f/-stop. If the maximum aperture of the lens is smaller than that listed
above, the maximum value for aperture is the maximum aperture of the lens.
i-TTL fl ash control is available at all sensitivity (ISO equivalency) settings.
100
2.8 3.2 3.5
4 4.5 5 5.6
5.6 6.3 7.1
8 9 10 11
11 13 14 16
16 18 20 22
22 25 29 32
32 — — —
modes, the maximum aperture (minimum f/-number) is limited
Maximum aperture at ISO equivalent of
250 320 400
3 3.2 3.3
6 6.3 6.7
1600
4 4.5 5 5.6
6.3 7.1 8
8 9 10 11
13 14 16
18 20 22
25 29 32
— — —
— — —
500 640
3.5 3.8
7.1 7.6
Range
m ft
1.0–7.7 3´3˝–25´3˝
0.7–5.5 2´4˝–18´1˝
0.6–4.0 2´–13´1˝
0.6–3.8 2´–12´6˝
0.6–1.9 2´–6´3˝
0.6–1.4 2´–4´7˝
0.6–0.9 2´–2´11˝
0.6–0.7 2´–2´4˝
800 1000 1250
4 4.2 4.5
8 8.5 9
1600
4.8
9.5