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[FP MANUAL]
≥ Listed below are the guide numbers (GN) for 1/1 (FULL) flashes.
Lighting angle
(mm)
Shutter speed
≥ In the [FP MANUAL] mode, the following formula can be used to obtain the guide numbers (GN)
when any setting except 1/1 is used for the light quantity.
How to obtain the guide number when the light quantity setting is other than 1/1
≥ Guide number (GN) = Guide number for 1/1 k light quantity ratio coefficient
Light quantity ratio coefficient
Light quantity ratio
Light quantity ratio
coefficient
≥ The tables show the values when the ISO sensitivity is [100].
32
VQT0Z62
FOUR THIRDS
When a 135 (35 mm
film conversion)
camera is used
1/125
1/160
1/200
1/250
1/320
1/400
1/500
1/640
1/800
1/1000
1/1250
1/1600
1/2000
1/2500
1/3200
1/4000
1/5000
1/6400
1/8000
1/1
1.0
8
10
12
16
20
24
13
14
20
11
13
18
10
11
16
9.0
10
14
8.0
8.9
13
7.1
7.9
11
6.4
7.1
9.9
5.7
6.3
8.8
5.0
5.6
7.9
4.5
5.0
7.0
4.0
4.4
6.2
3.6
4.0
5.6
3.2
3.5
5.0
2.8
3.1
4.4
2.5
2.8
3.9
2.2
2.5
3.5
2.0
2.2
3.1
1.8
2.0
2.8
1.6
1.8
2.5
1/2
1/4
0.71
0.5
14
17
25
28
35
50
21
26
28
19
23
25
17
20
23
15
18
20
13
16
18
12
14
16
11
13
14
9.4
11
13
8.4
10
11
7.5
9.0
10
6.7
8.0
8.9
5.9
7.2
7.9
5.3
6.4
7.1
4.7
5.7
6.3
4.2
5.1
5.6
3.7
4.5
5.0
3.3
4.0
4.5
3.0
3.6
4.0
2.7
3.2
3.5
1/8
0.35
35
42
70
85
32
35
28
32
25
28
23
25
20
22
18
20
16
18
14
16
13
14
11
13
10
11
8.9
9.9
8.0
8.9
7.1
7.9
6.3
7.0
5.6
6.3
5.0
5.6
4.5
5.0
4.0
4.4
1/16
0.25
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