Manual mode

Manual mode

The SB-800 features three manual modes.

•

Distance-priority manual flash p

•

Manual flash

G

•

Repeating flash

q

You can calculate the correct aperture by using the guide number table and the shooting distance. Then set the same aperture manually on the lens.

In this case, set the camera’s exposure mode to Aperture-Priority Auto (A) or Manual (M).

•Refer to your camera’s instruction manual for details on camera and lens aperture settings.

•With the SB-800 in the Manual mode, if the camera’s exposure mode is set to other than Aperture-Priority (A) or Manual (M), the shutter may not be released, depending on the cameras in use. For details, refer to your camera’s instruction manual.

•In the Manual mode, no warning ready-light blinks to indicate that the light may have been insufficient for correct exposure after shooting.

■■■ Determining the aperture, flash output level and shooting distance in the Manual mode

In the Manual mode, use the guide number table and the following equation to calculate the aperture, flash output level, and shooting distance to obtain the correct exposure.

•The guide number (GN at ISO 100; m/ft) indicates the amount of light generated by the flash. The larger the number, the greater the flash output.

Guide number (ISO 100, m/ft)

 

 

 

 

 

 

 

 

 

 

 

 

Flash

 

 

 

 

Zoom-head position (mm)

 

 

 

output

 

 

 

 

 

 

 

 

 

 

 

level

∗1

∗2

14∗3

17∗3

24

28

35

50

70

85

105

 

 

 

 

 

 

 

 

 

 

 

 

M1/1

12.5/41

16/52

17/56

19/62

30/98

32/105

38/125

44/144

50/164

53/174

56/184

 

 

 

 

 

 

 

 

 

 

 

 

M1/2

8.8/29

11.3/37

12/39

13.4/44

21.2/70

22.6/74

26.9/88

31/102

35.4/116

37.5/123

40/131

 

 

 

 

 

 

 

 

 

 

 

 

M1/4

6.3/21

8.0/26

8.5/28

9.5/31

15.0/49

16/52

19/62

22/72

25/82

26.5/87

28/92

 

 

 

 

 

 

 

 

 

 

 

 

M1/8

4.4/14

5.7/19

6.0/20

6.7/22

10.6/35

11.3/37

13.4/44

15.6/51

17.7/58

18.7/61

19.8/65

 

 

 

 

 

 

 

 

 

 

 

 

M1/16

3.1/10

4.0/13

4.3/14

4.8/16

7.5/25

8.0/26

9.5/31

11/36

12.5/41

13.3/44

14/46

 

 

 

 

 

 

 

 

 

 

 

 

M1/32

2.2/7

2.8/9

3.0/10

3.4/11

5.3/17

6.0/20

6.7/22

7.8/26

8.8/29

9.4/31

9.9/32

 

 

 

 

 

 

 

 

 

 

 

 

M1/64

1.6/5

2.0/7

2.1/7

2.4/8

3.7/12

4.0/13

4.8/16

5.5/18

6.3/21

6.6/22

7.0/23

 

 

 

 

 

 

 

 

 

 

 

 

M1/128

1.1/4

1.4/5

1.5/5

1.7/6

2.6/8.5

2.8/9

3.4/11

3.9/13

4.4/14

4.7/15

4.9/16

 

 

 

 

 

 

 

 

 

 

 

 

*1 With the Nikon Diffusion Dome attached and the wide-flash adapter in place *2 With the Nikon Diffusion Dome attached

*3 With the wide-flash adapter in place

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Nikon instruction manual Manual mode, SB-800 features three manual modes, Guide number ISO 100, m/ft
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