Specifications
Type
Type
Shoe-mount E-TTL II / E-TTL autoflash Speedlite
Compatible
cameras
EOS series supporting E-TTL II / E-TTL autoflash
* For details, refer to the Canon website.
Flash head
Guide number
Normal flash guide number
Maximum guide number (at approx. ISO 100)
Light distribution
Unit
Flash coverage
14mm
*
1
24mm
28mm
35mm
50mm
70mm
80mm
105mm 135mm 200mm
Standard
m
14.1
27.3
27.9
31.9
36.6
42.9
46.9
51.1
54.0
60.0
Guide number priority
m
31.9
31.9
36.6
42.9
48.6
54.0
55.4
60.0
60.0
Light distribution priority
m
27.3
27.3
27.3
29.0
33.5
36.6
42.9
46.9
51.1
* 1: When using the wide panel.
High-speed sync guide number
Maximum guide number (at approx. ISO 100)
Shutter speed
Unit
Flash coverage
14mm
24mm
28mm
35mm
50mm
70mm
80mm
105mm 135mm 200mm
1/125
m
8.8
17.0
17.4
19.8
22.8
26.7
29.2
31.8
33.6
37.3
1/250
m
7.5
14.5
14.8
16.9
19.4
22.7
24.8
27.1
28.6
31.8
1/500
m
4.9
9.5
9.7
11.1
12.8
15.0
16.4
21.7
23.0
25.5
1/1000
m
3.5
6.7
6.9
7.9
9.0
10.6
11.6
16.6
17.6
19.5
1/2000
m
2.5
4.8
4.9
5.6
6.4
7.5
8.2
12.3
13.0
14.4
1/4000
m
1.7
3.4
3.4
3.9
4.5
5.3
5.8
8.9
9.4
10.4
1/8000
m
1.2
2.4
2.4
2.8
3.2
3.7
4.1
6.4
6.7
7.5
225
