Approximate flash distance in manual flash – Pentax AF 200FG User Manual
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■Approximate flash distance in Manual flash
(Unit: m)
* The appropriate shooting distance (distance at which the appropriate exposure is available) is determined based on the combination of the
ISO sensitivity setting and the aperture value on the camera when the mode dial is set to (FULL). (The values in "Wide Panel" line indicate the
distance when the wide-angle panel is used.) Note that the minimum range that will give correct exposure is 0.7 meters.
ISO
sensitivity
Flash
Coverage
Angle
GN
Aperture (F value)
1.4
2
2.8
4
5.6
8
11
16
22
100
Normal
20 14.3 10.0 7.1 5.0 3.6 2.5 1.8 1.3 0.9
With the wide-
angle panel
15
10.7 7.5 5.4 3.8
2.7 1.9
1.4
0.9
0.7
200
Normal
28 20.0 14.0
10.0 7.0
5.0 3.5 2.5
1.8 1.3
With the wide-
angle panel
21 15.0
10.5 7.5 5.3 3.8 2.6 1.9 1.3
1.0
400
Normal
40 28.6 20.0 14.3 10.0 7.1 5.0 3.6 2.5 1.8
With the wide-
angle panel
30
21.4
15.0
10.7
7.5
5.4
3.8
2.7
1.9
1.4
800
Normal
57 40.7 28.5 20.4 14.3 10.2 7.1 5.2 3.6 2.6
With the wide-
angle panel
42
30.0
21.0
15.0
10.5
7.5
5.3
3.8
2.6
1.9
1600
Normal
80 57.1 40.0 28.6 20.0 14.3 10.0 7.3 5.0 3.6
With the wide-
angle panel
60
42.9 30.0 21.4 15.0
10.7
7.5
5.5
3.8
2.7
3200
Normal
113 80.7 56.5 40.4 28.3 20.2 14.1 10.3 7.1 5.1
With the wide-
angle panel
85
60.7
42.5
30.4
21.3
15.2
10.6
7.7
5.3 3.9
00_AF200FGZ.book Page 14 Tuesday, June 19, 2007 1:42 PM