Manual Flash - Canon Speedlite 470EX-AI Instruction Manual

Guide Number
Normal Flash (Full Output)/Quick Flash
Flash Coverage (mm)
Normal Flash (Full Output)
Quick Flash
Flash Coverage (mm)
Normal Flash (Full Output)
Quick Flash

Manual Flash

Flash Output
1/1
1/2
1/4
1/8
1/16
1/32
1/64
1/128
Flash Output
1/1
1/2
1/4
1/8
1/16
1/32
1/64
1/128
(ISO 100, in approx. meters/feet)
14
14.0 / 45.9 25.0 / 82.0 26.0 / 85.3 29.0 / 95.1
Equivalent to approx. 1/2 - 1/6 of full output
50
33.0 / 108.3 40.0 / 131.2 42.0 / 137.8 47.0 / 154.2
Equivalent to approx. 1/2 - 1/6 of full output
14
14.0 / 45.9 25.0 / 82.0
9.9 / 32.5 17.7 / 58.1
7.0 / 23.0 12.5 / 41.0
4.9 / 16.1 8.8 / 28.9
3.5 / 11.5 6.3 / 20.7
2.5 / 8.2 4.4 / 14.4
1.8 / 5.9 3.1 / 10.2
1.2 / 3.9 2.2 / 7.2
50
33.0 / 108.3 40.0 / 131.2
23.3 / 76.4 28.3 / 92.8
16.5 / 54.1 20.0 / 65.6
11.7 / 38.4 14.1 / 46.3
8.3 / 27.2 10.0 / 32.8
5.8 / 19.0 7.1 / 23.3
4.1 / 13.5 5.0 / 16.4
2.9 / 9.5 3.5 / 11.5
24
70
Flash Coverage (mm)
24 28
26.0 / 85.3
18.4 / 60.4
13.0 / 42.7
9.2 / 30.2
6.5 / 21.3
4.6 / 15.1
3.3 / 10.8
2.3 / 7.5
Flash Coverage (mm)
70 80
42.0 / 137.8
29.7 / 97.4
21.0 / 68.9
14.8 / 48.6
10.5 / 34.4
7.4 / 24.3
5.3 / 17.4
3.7 / 12.1
Specifications
28 35
80 105
35
29.0 / 95.1
20.5 / 67.3
14.5 / 47.6
10.3 / 33.8
7.3 / 24.0
5.1 / 16.7
3.6 / 11.8
2.6 / 8.5
105
47.0 / 154.2
33.2 / 108.9
23.5 / 77.1
16.6 / 54.5
11.8 / 38.7
8.3 / 27.2
5.9 / 19.4
4.2 / 13.8
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