Nikon D70s Range, Using the Built-inSpeedlight, Photography Flash—PhotographsTaking, Flash Range, Aperture, and Sensitivity

Photography Flash—Photographs Taking

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 briefly to protect the flash. 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									Range
200	250	320	400	500	640	800	1000 1250 1600			m	ft
2	2.2	2.5	2.8	3.2	3.5	4	4.5	5	5.6	1.0–7.5	3´3˝–24´7˝
2.8	3.2	3.5	4	4.5	5	5.6	6.3	7.1	8	0.7–5.4	2´4˝–17´8˝
4	4.5	5	5.6	6.3	7.1	8	9	10	11	0.6–3.8	2´–12´6˝
5.6	6.3	7.1	8	9	10	11	13	14	16	0.6–2.7	2´–8´9˝
8	9	10	11	13	14	16	18	20	22	0.6–1.9	2´–6´3˝
11	13	14	16	18	20	22	25	29	32	0.6–1.4	2´–4´7˝
16	18	20	22	25	29	32	—	—	—	0.6–0.9	2´–2´11˝
22	25	29	32	—	—	—	—	—	—	0.6–0.7	2´–2´4˝

The minimum distance at which the built-in Speedlight can be used is 0.6 m (2´).

In P,	,	,	, and	modes, the maximum aperture (minimum f/-number) is limited
according to sensitivity (ISO equivalency) as shown below:
					Maximum aperture at ISO equivalent of
	Mode		200	250	320	400	500	640	800	1000	1250	1600
P,	,	,	2.8	3	3.2	3.3	3.5	3.8	4	4.2	4.5	4.8
			5.6	6	6.3	6.7	7.1	7.6	8	8.5	9	9.5

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 flash control is available at all sensitivity (ISO equivalency) settings.

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