Nikon SB 900 User Manual - Page 134

Guide number table

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Specifications Guide number table The SB-900 guide numbers differ depending on the camera's image area, illumination pattern, ISO sensitivity, zoom position and flash output level. ISO 100 · m Zoom position (mm) Standard illumination FX-format Center-weighted illumination Even illumination Standard illumination DX-format Center-weighted illumination Even illumination 8 (BA+WP) - - - - 13 - 8 (BA) - - - - 16 - 8 (WP) - - - - 17 - 10 (BA+WP) - - - 13 - - 10 (BA) - - - 16 - - 10 (WP) - - - 17 - - 11 (BA+WP) - - - - - 13 11 (BA) - - - - - 16 11 (WP) - - - - - 17 12 (BA+WP) - 13 - - - - 12 (BA) - 16 - - - - 12 (WP) - 17 - - - - 12 - - - 23 26 - 14 (BA+WP) 13 - - - - - 14 (BA) 16 - - - - - 14 (WP) F 14 16 17 - - - - - - - - - - 25 29 - - 27 32 22 17 (BA+WP) - - 13 - - - 17 (BA) - - 16 - - - 17 (WP) - - 17 - - - 17 22 25 - 29 33 23 18 23 26 - 30 34 24 20 24 27 - 31 36 25 24 27 32 22 34 40 32 28 30 36 24 36 43 33 35 34 40 31 40 47 37 50 40 46 36 46 51 43 70 44 50.5 41 49.5 53 49 85 47 52 44 51 58 50.5 105 49.5 53 49 52.5 - 51 120 51 56 50 54 - 51.5 135 51.5 58 50.5 56 - 52.5 180 54 - 51.5 56.5 - 53 200 56 - 52 57 - 54 Tips on Speedlight care and reference information • BA: With the Nikon Diffusion Dome attached • WP: With the wide-flash adapter in place F-18

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F
–
18
F
Tips on Speedlight care and reference information
Specifications
Zoom position (mm)
FX-format
DX-format
Standard
illumination
Center-weighted
illumination
Even illumination
Standard
illumination
Center-weighted
illumination
Even illumination
8 (BA+WP)
–
–
–
–
13
–
8 (BA)
–
–
–
–
16
–
8 (WP)
–
–
–
–
17
–
10 (BA+WP)
–
–
–
13
–
–
10 (BA)
–
–
–
16
–
–
10 (WP)
–
–
–
17
–
–
11 (BA+WP)
–
–
–
–
–
13
11 (BA)
–
–
–
–
–
16
11 (WP)
–
–
–
–
–
17
12 (BA+WP)
–
13
–
–
–
–
12 (BA)
–
16
–
–
–
–
12 (WP)
–
17
–
–
–
–
12
–
–
–
23
26
–
14 (BA+WP)
13
–
–
–
–
–
14 (BA)
16
–
–
–
–
–
14 (WP)
17
–
–
–
–
–
14
–
–
–
25
29
–
16
–
–
–
27
32
22
17 (BA+WP)
–
–
13
–
–
–
17 (BA)
–
–
16
–
–
–
17 (WP)
–
–
17
–
–
–
17
22
25
–
29
33
23
18
23
26
–
30
34
24
20
24
27
–
31
36
25
24
27
32
22
34
40
32
28
30
36
24
36
43
33
35
34
40
31
40
47
37
50
40
46
36
46
51
43
70
44
50.5
41
49.5
53
49
85
47
52
44
51
58
50.5
105
49.5
53
49
52.5
–
51
120
51
56
50
54
–
51.5
135
51.5
58
50.5
56
–
52.5
180
54
–
51.5
56.5
–
53
200
56
–
52
57
–
54
BA: With the Nikon Diffusion Dome attached
WP: With the wide-flash adapter in place
•
•
ISO 100 · m
Guide number table
The SB-900 guide numbers differ depending on the camera’s image area, illumination
pattern, ISO sensitivity, zoom position and flash output level.
Specifications