Manual flash (gno.) – Canon 580EX User Manual
Page 54
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Guide No. (GNo.) (ISO 10O, in meters/Teet)
Normal Flash (Full Output) and Quick Flash (GNo.)
Fla^ Coverage (mm)
14
24
28
3S
50
70
80
105
Mormai Flash
■ (Full output)
15/
49.2
28/
91.9
30/
98.4
36/
118,1
42/
137.8
50/
164
53/
173-9
58/
190,3
Quick Rash
Same as 1/2 to 1/6 manual tfash output
Manual Flash (GNo.)
Flash Ou^ut
Flash Cdverage (mm)
14
24
28
35
50
70
80
105
1/1
15/
28/
30/-
36/
42/
50/
53/
58/
49.2
91.9
98,i|
118.1
137.8
164
173.9
190.3
1/2^
10
.6/
19.8/
21
.2/
26.5/
29.7/
35.4/
37-5/
41/
34,8
$6
69.6
83.7
97.4
116.1
123
134.S
1/4
7.5/
14/
15/
18/
21
/
25/
26.5/
29/
24.6
45-9
49.2
59.1
6S.9
82
86.9
95 1
1/8
5.3/
9.3/
10.6/
12.7/
14.a^
17.7/
18.7/
20.5/
17.4
32.5
34.8
41.7
45.6
58.1
61.4
67.3
1/16
3.8/
7/
7,5/
9/
10.5/
12.5/
13.3/
14.5/
12.5
23
24.6
29.5
34.4
41
43.6
47.6
1/32
2.7/
4.9/
5-3/
6,4/
7.4/
B.B/
9.4/
10.3/
8-9
16.1
17.4
21
24.3
26.9
30.8
33.8
1/64
1.9/
3-5/
3.3/
4.5/
5.3/
6-3/
6
.6/
7.3/
6.2
ll.S
12-6
14.6
17.4
20.7
21 7
24
1/128
1.3/
2.5/
2.7/
3.2/
3.7/
4.4/
4.7/
5.1/
4.3
8.9
10.5
12.1
14.4
15,4
10,7
52