Nikon SB-24 instruction manual Electronic, Construction, Guide number, Zoom capability, Approx

SPECIFICATIONS--------:----:-----=---------

All performance data are for normal-temperature operation (20°C [68°F]).

Electronic		Automatic silicon-controlled rectifier
construction:		and series circuitry
Guide number:					m (tt) at ISO 100
'{'oom setting	24mm	28mm	35mm	50mm	70mm	85mm
Light output\
1/1	30(98)	32(105)	36(118)	42(138)	47(154)	50(164)
1/2	21 (69)	22(72)	25(82)	30(98)	33(108)	36(118)
1/4	15(49)	16(52)	18(59)	21 (69)	23(75)	25(82)
1/8	10.5(34)	11 (36)	12.5(41)	15(49)	16.5(54)	18(59)
1/16	7.5(25)	8(26)	9(29)	10.5(34)	11 .5 (38)	12.5(41)

Bounce capability: Flash head tilts down to - 7° or up to 90° with click stops; flash head rotates through an arc of 270°, 90° clockwise and 180° counterclock- wise with click stops; at front posi- tion for both vertical and horizontal angle, flash head can be locked

Power source:Four 1.5 AA-type penlight alkaline- manganese, or 1.2V NiCd batteries; optional Battery Pack SO-7 holding six C-type batteries is available as an external power source

Power switch:Three positions are provided-OFF. STBY (for standby) and ON; at STBY position with Nikon F4, F-801/N8008,

F-501/N2020, F-401s/N4004s , F-301 1

Zoom capability:	Six settings-24mm , 28mm, 35mm,			N2000, FA, FE2 or FG, SB-24 turns
				off automatically when flash unit is
	50mm, 70mm, 85mm; auto power
				not used for one or two minutes,
	zoom with the Nikon F-801/N8008;
				and turns on when camera exposure
	manually set with other cameras
				meter is on
Angle of coverage:
			Flash duration	At 1/1 (full) output 1/1000 sec.
Zoom setting	Horizontal	Vertical	(approx.):	At 1/2 output	1/1100 sec.
24mm	78°	60°		At 1/4 output	1/2700 sec.
				At 1/8 output	1/5500 sec .
28mm	70°	53°
				At 1/16 output	1/11000 sec.
35mm	60°	45°
50mm	46°	34°
70mm	36°	26°
85mm	31°	23°

98