Cop y, Guide number – Canon Macro Ring Lite MR-14EX II User Manual
Page 77
75
Specifications
Guide Number
(Approx., ISO 100, in meters/feet)
Normal Flash
High-speed Sync
(at full output)
Flash
Output
Both Sides
Firing
Single-side
Firing
Shutter
Speed
Both Sides
Firing
Single-side
Firing
1/1
14.0 / 45.9
10.5 / 34.4
1/125
8.9 / 29.2
6.6 / 21.7
1/2
9.9 / 32.5
7.4 / 24.4
1/160
8.5 / 27.9
6.3 / 20.7
1/4
7.0 / 23.0
5.3 / 17.2
1/200
8.0 / 26.2
6.0 / 19.7
1/8
4.9 / 16.2
3.7 / 12.2
1/250
7.6 / 24.9
5.7 / 18.7
1/16
3.5 / 11.5
2.6 / 8.6
1/320
6.2 / 20.3
4.6 / 15.1
1/32
2.5 / 8.1
1.9 / 6.1
1/400
5.5 / 18.0
4.1 / 13.5
1/64
1.8 / 5.7
1.3 / 4.3
1/500
4.9 / 16.1
3.7 / 12.1
1/128
1.2 / 4.1
0.9 / 3.0
1/640
4.4 / 14.4
3.3 / 10.8
1/800
3.9 / 12.8
3.1 / 10.2
1/1000
3.5 / 11.5
2.6 / 8.5
1/1250
3.1 / 10.2
2.3 / 7.5
1/1600
2.7 / 8.9
2.1 / 6.9
1/2000
2.4 / 7.9
1.8 / 5.9
1/2500
2.2 / 7.2
1.6 / 5.2
1/3200
1.9 / 6.2
1.5 / 4.9
1/4000
1.7 / 5.6
1.3 / 4.3
1/5000
1.5 / 4.9
1.2 / 3.9
1/6400
1.4 / 4.6
1.0 / 3.3
1/8000
1.2 / 3.9
0.9 / 3.0
COP
Y