Flash shooting distance range – Nikon n65 User Manual
Page 84
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Flash Shooting Distance Range
Flash shooting distance for the built-in Speedlight changes according to
the film speed in use and aperture setting.
ISO film speed
25
50
100
200
400
800
Flash shooting
distance range
m/ft.
Guide number m/ft.6/20 8.5/28 12/40 17/56 24/79 34/112
Aperture value
—
—
1.4
2
2.8
4
2-8.5/6.6-28
—
1.4
2
2.8
4
5.6
1.4-6/4.6-20
1.4
2
2.8
4
5.6
8
1-4.2/3.3-14
2
2.8
4
5.6
8
11
0.7-3/2.3-10
2.8
4
5.6
8
11
16
0.6-2.1/2.0-6.9
4
5.6
8
11
16
22
0.6-1.5/2.0-4.9
5.6
8
11
16
22
32
0.6-1.1/2.0-3.6
8
11
16
22
32
—
0.6-0.8/2.0-2.6
• The maximum flash shooting distance can also be calculated by dividing the
guide number by the selected aperture value.
Example: When f/2.8 is selected with ISO 100 film using the camera's built-in
Speedlight, the maximum flash shooting distance will be:
12/2.8 = approx. 4.2m or 40/2.8 = approx. 14 ft.
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