Guide numbers in the manual mode – Nikon SPEEDLIGHT SB-16 User Manual
Page 40
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The guide number at various film speeds and zoom head
settings is shown in the following table:
Guide numbers in the manual mode
Unit: m (ft)
Zoom head
setting
ASA/ISO film speed
800
400
200
100
50
25
T
119(390) 84 (276) 59(194) 42(138) 30 (98) 21 (69)
s
107(351) 76 (250) 54(177) 38(125) 27 (89) 19 (62)
N
90 (295) 64(210) 45 (148) 32(105) 22(72) 16 (52)
Wi
76 (250) 54(177) 38(125) 27 (89)
19(62) 13 (43)
Wi*
54(177) 38(125) 27 (89)
19(62)
13 (43) 9.5 (31)
* W?
is used when the wide-flash adapter is attached to the flash unit
with the zoom head set at W i.
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