Guide number table – Olympus FL-700WR Electronic Flash User Manual
Page 67
67
EN
Guide number table
Guide number table
The values for fi ring angle (ZOOM) indicate the focal length for a Four Thirds lens
(Unit: mm). The values inside the parentheses indicate the focal length for 135
fi lm (35 mm fi lm).
In the standard fl ash modes (standard light distribution; ISO100)
Flash
intensity
(RATIO)
Firing angle (ZOOM)
7 (14)
12 (24)
14 (28)
17 (35)
25 (50)
30 (60)
35 (70)
1/1
11.0
21.0
22.0
24.0
27.0
29.0
30.0
1/2
7.8
14.9
15.6
17.0
19.1
20.5
21.2
1/4
5.5
10.5
11.0
12.0
13.5
14.5
15.0
1/8
3.9
7.4
7.8
8.5
9.6
10.3
10.6
1/16
2.8
5.3
5.5
6.0
6.8
7.3
7.5
1/32
1.9
3.7
3.9
4.2
4.8
5.1
5.3
1/64
1.4
2.6
2.8
3.0
3.4
3.6
3.8
1/128
1.0
1.9
1.9
2.1
2.4
2.6
2.7
40 (80)
45 (90)
52 (105)
60 (120)
67 (135)
75 (150)
1/1
33.0
36.0
37.0
38.0
40.0
42.0
1/2
23.3
25.5
26.2
26.9
28.3
29.7
1/4
16.5
18.0
18.5
19.0
20.0
21.0
1/8
11.7
12.7
13.1
13.4
14.1
14.9
1/16
8.3
9.0
9.3
9.5
10.0
10.5
1/32
5.8
6.4
6.5
6.7
7.1
7.4
1/64
4.1
4.5
4.6
4.8
5.0
5.3
1/128
2.9
3.2
3.3
3.4
3.5
3.7