FLASH SHOOTING DISTANCE RANGE;
Unit: m (ft.)
ISO film speed
Flash shooting
distance range
25 50 100
200
400 800
Aperture
—
- — -
2
2.8
3.2-13 (10.6-42.9)
—
— —
2 2.8
4
2.3-9.2 (7.6-30.4)
-
1.4
2 2.8
4
5.6
1.6-6.5 (5.3-21.5)
1.4
2 2.8
4
5.6
8
1.1-4.6(3.6-15.2)
2 2.8
4
5.6
8
11 0.8-3.3 (2.6-10.9)
2.8
4
5.6
8
11
16
0.6-2.3 (2.0-7.6)
4
5.6 8
11 16
22
0.6-1.6 (2.0-5.3)
5.6 8
11 16
22
-
0.6-1.2 (2.0-4.0)
Flash shooting distance range depends on aperture. In programmed auto or shutter
priority auto exposure mode, controlled aperture varies according to lens' maximum
aperture and film speed in use. For reference, flash shooting distance ranges with
AF Zoom-Nikkor 35-70mm f/3.3-fl4.5 lens, in programmed or shutter-priority auto,
are shown on page 20.
CONTROLLED MAX. APERTURE IN PROGRAMMED AND
SHUTTER-PRIORITY AUTO EXPOSURE MODE:
ISO film speed
25 50
100 200
400 800
Lens in use
With f/1.4 lens
f/2
f/2.38 f/2.8 f/3.36
f/4
f/4.76
With f/3.3 lens f/3.3 f/3.3
f/3.3 f/3.36
f/4
f/4.76
With f/4.5 lens f/4.5 f/4.5
f/4.5
f/4.5 f/4.5 f/4.76
The maximum shooting dis
tance can be estimated by
guide number:
Guide number _ Maximum shoot-
full aperture ing distance
i.e.. if f/2 lens is used at IS0100:
~ = 6.5m or ^ = 21.5 ft.
80
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