Nikon D70-series 200, Fine-Tuning and Color Temperature, Flash Range, Aperture, and Sensitivity

Technical Notes—Appendix

Fine-Tuning and Color Temperature

Approximate color-temperatures for settings other than A (auto) are given below (values may differ from color temperatures given by photo color meters):

			Direct		Cloudy	Shade
	Incandescent	Fluorescent*	sunlight	Flash	(daylight)	(daylight)
+3	2,700 K	2,700 K	4,800 K	4,800 K	5,400 K	6,700 K
+2	2,800 K	3,000 K	4,900 K	5,000 K	5,600 K	7,100 K
+1	2,900 K	3,700 K	5,000 K	5,200 K	5,800 K	7,500 K
±0	3,000 K	4,200 K	5,200 K	5,400 K	6,000 K	8,000 K
–1	3,100 K	5,000 K	5,300 K	5,600 K	6,200 K	8,400 K
–2	3,200 K	6,500 K	5,400 K	5,800 K	6,400 K	8,800 K
–3	3,300 K	7,200 K	5,600 K	6,000 K	6,600 K	9,200 K

*The size of the increments for Fluorescent reflects the wide variations in color tempera- ture among the many different types of fluorescent light source, ranging from low-tem- perature stadium lighting to high-temperature mercury-vapor lamps.

Flash Range, Aperture, and Sensitivity

Flash range varies with sensitivity (ISO equivalency) and aperture.

				Aperture at ISO equivalent of									Range
100	125	160	200	250	320	400	500	640	800	1000	1250	1600	m	ft.
1.4	1.6	1.8	2	2.2	2.5	2.8	3.2	3.5	4	4.5	5	5.6	1.0–7.5	3.3–24.6
2	2.2	2.5	2.8	3.2	3.5	4	4.5	5	5.6	6.3	7.1	8	0.7–5.4	2.3–17.7
2.8	3.2	3.5	4	4.5	5	5.6	6.3	7.1	8	9	10	11	0.6–3.8	2.0–12.5
4	4.5	5	5.6	6.3	7.1	8	9	10	11	13	14	16	0.6–2.7	2.0–8.9
5.6	6.3	7.1	8	9	10	11	13	14	16	18	20	22	0.6–1.9	2.0–6.2
8	9	10	11	13	14	16	18	20	22	25	29	32	0.6–1.4	2.0–4.6
11	13	14	16	18	20	22	25	29	32	—	—	—	0.6–0.9	2.0–2.9
16	18	20	22	25	29	32	—	—	—	—	—	—	0.6–0.7	2.0–2.3

In programmed auto, the maximum aperture (minimum f/-number) is limited according to sensitivity (ISO equivalency), as shown below:

Maximum aperture at ISO equivalent of:

100	125	160	200	250	320	400	500	640	800	1000	1250	1600
2.8	3	3.2	3.3	3.5	3.8	4	4.2	4.5	4.8	5	5.3	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 given above, the maximum value for aperture will be the maximum aper- ture of the lens.

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