SPECIFICATIONS,----------------
All performance data are for normal-temperature operation
[20°C
(68°F)]
Electronic
construction
Guide number
(at manual full light
output)
Zoom capability
Angle of coverage
Automatic
si
licon-cont
ro
ll
ed
rectifier and series circuitry
30 (I
SO
100 and meter
s)
or
49 (I
SO
25
and feet) w
it
h the
zoom set r
ing
at
N .
Th
r
ee
settings: W for
wideangle, N for normal and
T for telephoto
Zoom set
Horizontal Vertical Usable lens
ring position
W (wideangle) 53°
N (normal) 45°
T (telephoto) 23°
Bounce capability
Flash duration
Light output
(approx.)
F
ull
1
/2
1/4
1/8
1116
70° 28mm or longer
60°
35
mm or longer
31°
85mm or longer
Flash head can be rotated
down to -
r or up to 90°
Flash duration (approx.)
1I1
200sec.
1
/150
0sec.
1/3700sec.
117400sec.
1I15000sec.
Power source
Power switch
F
ou
r 1
.5
V AA-type al
ka
li
ne-
manganese or NiCd batteries;
optional
Ba
ttery Pack S
D-
7
holding six
C-
type batteries is
available
as
an
external
power source
Th
ree
positions are pro-
vi
ded-O
FF
,
ST
BY (for
standby) and
ON
;
at
STBY
position with the Nikon F
-501
!
N2020, F-401!N4004,
F-
301!
N2000,
FA,
FE
2 or F
G,
SB-20
turns off automatica
ll
y when
flash
un
it is not used
fo
r one or
two minutes and turns
on
when
camera exposure meter
is
on
53
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