Panasonic DMWFL500E User Manual
Page 32
32
VQT0Z62
[FP MANUAL]
≥ Listed below are the guide numbers (GN) for 1/1 (FULL) flashes.
≥ 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
≥ The tables show the values when the ISO sensitivity is [100].
Lighting angle
(mm)
FOUR THIRDS
8
10
12
14
17
25
35
42
When a 135 (35 mm
film conversion)
camera is used
16
20
24
28
35
50
70
85
Shutter speed
1/125
13
14
20
21
26
28
32
35
1/160
11
13
18
19
23
25
28
32
1/200
10
11
16
17
20
23
25
28
1/250
9.0
10
14
15
18
20
23
25
1/320
8.0
8.9
13
13
16
18
20
22
1/400
7.1
7.9
11
12
14
16
18
20
1/500
6.4
7.1
9.9
11
13
14
16
18
1/640
5.7
6.3
8.8
9.4
11
13
14
16
1/800
5.0
5.6
7.9
8.4
10
11
13
14
1/1000
4.5
5.0
7.0
7.5
9.0
10
11
13
1/1250
4.0
4.4
6.2
6.7
8.0
8.9
10
11
1/1600
3.6
4.0
5.6
5.9
7.2
7.9
8.9
9.9
1/2000
3.2
3.5
5.0
5.3
6.4
7.1
8.0
8.9
1/2500
2.8
3.1
4.4
4.7
5.7
6.3
7.1
7.9
1/3200
2.5
2.8
3.9
4.2
5.1
5.6
6.3
7.0
1/4000
2.2
2.5
3.5
3.7
4.5
5.0
5.6
6.3
1/5000
2.0
2.2
3.1
3.3
4.0
4.5
5.0
5.6
1/6400
1.8
2.0
2.8
3.0
3.6
4.0
4.5
5.0
1/8000
1.6
1.8
2.5
2.7
3.2
3.5
4.0
4.4
Light quantity ratio
1/1
1/2
1/4
1/8
1/16
Light quantity ratio
coefficient
1.0
0.71
0.5
0.35
0.25
VQT0Z62.book 32 ページ ２００６年６月２２日 木曜日 午前１１時４６分