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Manual flash guide number
Maximum guide number (at approx. ISO 100)
Flash output
1/256 *
1/512 *
1/1024 *
1/2048 *
1/4096 *
1/8192 *
* 1: It cannot be used when setting high-speed sync or optical transmission wireless
Flash coverage
(focal length; for
35mm full-frame)
Bounce angle
* Position at which the bounce lock is engaged
Unit
14mm
24mm
1/1
m
14.1
1/2
m
10.0
1/4
m
7.1
1/8
m
5.0
1/16
m
3.5
1/32
m
2.5
1/64
m
1.8
1/128
m
1.2
1
m
0.9
1
m
0.6
1
m
0.4
1
m
0.3
1
m
0.2
1
m
0.2
14mm
24mm
28mm
35mm
50mm
70mm
80mm
105mm
135mm
200mm
Bounce direction
Up
Down
Left
Right
Flash coverage
28mm
35mm
50mm
27.3
27.9
31.9
36.6
19.3
19.7
22.6
25.9
13.7
14.0
16.0
18.3
9.7
9.9
11.3
12.9
6.8
7.0
8.0
9.2
4.8
4.9
5.6
6.5
3.4
3.5
4.0
4.6
2.4
2.5
2.8
3.2
1.7
1.7
2.0
2.3
1.2
1.2
1.4
1.6
0.9
0.9
1.0
1.1
0.6
0.6
0.7
0.8
0.4
0.4
0.5
0.6
0.3
0.3
0.4
0.4
Wide panel: Manual
* Not compatible with EF15mm f/2.8 Fisheye or EF8-15mm f/4L Fisheye USM
shooting angles of view
Zoom
• A: Auto
Flash coverage is set automatically, accounting for [Auto zoom for sensor size]
and [Light distribution] settings at the lens focal length
• M: Manual
Flash coverage is set manually
* [Auto zoom for sensor size] and [Light distribution] settings are not taken
into account
45°
60°
0° *
7°
60°
75°
0° *
60°
75°
226
70mm
80mm
105mm
42.9
46.9
51.1
30.3
33.2
36.1
21.5
23.5
25.6
15.2
16.6
18.1
10.7
11.7
12.8
7.6
8.3
9.0
5.4
5.9
6.4
3.8
4.1
4.5
2.7
2.9
3.2
1.9
2.1
2.3
1.3
1.5
1.6
0.9
1.0
1.1
0.7
0.7
0.8
0.5
0.5
0.6
Bounce angle (approx.)
75°
90°*
90°
120°
90°
120°
135mm
200mm
54.0
60.0
38.2
42.4
27.0
30.0
19.1
21.2
13.5
15.0
9.5
10.6
6.8
7.5
4.8
5.3
3.4
3.8
2.4
2.7
1.7
1.9
1.2
1.3
0.8
0.9
0.6
0.7
120°
150°
180°
150°
180°
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