Canon 600EX, 600EX-RT, Speedlite 600 EX-RT Manual Flash, Guide Number (ISO 100 in meters/feet), Normal Flash (Full Output)/Quick Flash

Specifications

Guide Number (ISO 100 in meters/feet)Normal Flash (Full Output)/Quick Flash

Flash Coverage (mm)

14

20

24

28

35

50

Normal Flash (Full Output)

15/49.2

26/85.3

28/91.9

30/98.4

36/118.1

42/137.8

Quick Flash

Same as

1/2 to 1/6 of manual flash

Flash Coverage (mm)

70

80

105

135

200

Normal Flash (Full Output)

50/164

53/173.9

58/190.3

59/193.6

60/196.9

Quick Flash

Same

as 1/2

to 1/6 of

manual

flash

Manual Flash

Flash Output

Flash Coverage (mm)

14

20

24

28

35

50

1/1

15/49.2

26/85.3

28/91.9

30/98.4

36/118.1

42/137.8

1/2

10.6/34.8

18.4/60.4

19.8/65

21.2/69.6

25.5/83.7

29.7/97.4

1/4

7.5/24.6

13/42.7

14/45.9

15/49.2

18/59.1

21/68.9

1/8

5.3/17.4

9.2/30.2

9.9/32.5

10.6/34.8

12.7/41.7

14.8/48.6

1/16

3.8/12.5

6.5/21.3

7/23

7.5/24.6

9/29.5

10.5/34.4

1/32

2.7/8.9

4.6/15.1

4.9/16.1

5.3/17.4

6.4/21

7.4/24.3

1/64

1.9/6.2

3.3/10.8

3.5/11.5

3.8/12.5

4.5/14.8

5.3/17.4

1/128

1.3/4.3

2.3/7.5

2.5/8.2

2.7/8.9

3.2/10.5

3.7/12.1

Flash Output

Flash Coverage (mm)

70

80

105

135

200

1/1

50/164

53/173.9

58/190.3

59/193.6

60/196.9

1/2

35.4/116.1

37.5/123

41/134.5

41.7/136.8

42.4/139.1

1/4

25/82

26.5/86.9

29/95.1

29.5/96.8

30/98.4

1/8

17.7/58.1

18.7/61.4

20.5/67.3

20.9/68.6

21.2/69.6

1/16

12.5/41

13.3/43.6

14.5/47.6

14.8/48.6

15/49.2

1/32

8.8/28.9

9.4/30.8

10.3/33.8

10.4/34.1

10.6/34.8

1/64

6.3/20.7

6.6/21.7

7.3/24

7.4/24.3

7.5/24.6

1/128

4.4/14.4

4.7/15.4

5.1/16.7

5.2/17.1

5.3/17.4

115