Flash Photography
Taking Photographs—Flash Photography
100
Flash Range, Aperture, and Sensitivity
Flash range varies with sensitivity (ISO equivalency) and aperture.
The minimum range at which the built-in Speedlight will be able to light the entire
subject is 0.6 m (2´).
In auto multi program, the maximum aperture (minimum f/-number) is limited accord-
ing to sensitivity (ISO equivalency), as shown below:
Maximum aperture at an ISO equivalent of
1600
5.6
200
3.3
250
3.5
320
3.8
400
4
500
4.2
640
4.5
800
4.8
1000
5
1250
5.3
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 aperture of the lens.
D-TTL flash control can be used to adjust flash output at sensitivity (ISO equivalency)
settings between 200 and 1600. At settings of HI-1 and HI-2, the desired results may
not be achieved at some ranges or aperture settings.
Using the Built-in Speedlight
If the built-in Speedlight is raised in continuous shooting mode, only one photograph
will be taken each time the shutter-release button is pressed.
Vibration reduction (available with VR lenses) will not take effect if the shutter-release
button is press halfway while the built-in Speedlight is charging.
Aperture at an 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
2–8.5
6´7˝–27´11˝
2.8
3.2
3.5
4
4.5
5
5.6
6.3
7.1
8
1.4–6
4´7˝–19´8˝
4
4.5
5
5.6
6.3
7.1
8
9
10
11
1–4.2
3´3˝–13´9˝
5.6
6.3
7.1
8
9
10
11
13
14
16
0.7–3
2´4˝–9´10˝
8
9
10
11
13
14
16
18
20
22
0.6–2.1
2´–6´11˝
11
13
14
16
18
20
22
25
29
32
0.6–1.5
2´–4´11˝
16
18
20
22
25.4
29
32
—
—
—
0.6–1.1
2´–3´7˝
22
25
29
32
—
—
—
—
—
—
0.6–0.8
2´–2´7˝
