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SPECIFICATIONS---------------
All performance data are for normal· temperature operation
[20°C (68°F))
Electronic
construction
Guide number
Angle of coverage
Autom
atic
silicon·controlled
rectifier
and
series
circuitry
25
(ISO 100
and meters);
18
(with
wide·flash
adapter)
41 (ISO
25
and feet)
;
30
(with wide·flash adapter)
Horizontal Vertical
Usable lens
Normal
60°
45°
35mm or longer
With wide·
fl
ash
70°
53°
28mm or longer
adapter
Bounce capability
Fl
ash
head
can
be
tilted down
to
-
yo
or
up
to
90°
Flash duration
Approx.
1/ 1700sec. (at
M
sett·
ing) or 1
18000 sec.
(at
MD
setting)
Power source
Four
1,5
V
AA·type alkaline·
manganese, manganese
or
NiCd
batteries
;
optional
Battery
Pack SD·7
holding
six
C·type
batteries is available as
an
external
power
sou rce
Power switch
Three
positions are provided
-OFF,
STBY
(for
standby)
and
ON
;
at
STBY
position
with
the Nikon
F·501/N2020,
F·4011
N4004,
F·
301/N2000,
FA, FE2
or FG,
SB·22
tums
off
auto·
matically
when
flash unit
is
not
used
for
one or
two
minutes
and
turns
on
when
camera
exposure
meter
is on
Number of flashes and recycling time at manual
full light output
Battery type
Number of flashes Recycling time
(approx. )'
(approx.)
AA·type
200 times
4sec
,
alkaline·manganese
AA-type
manganese
55
times
8sec
,
AA-type NiCd
70 times
3sec,
C·type alkaline·
Up
to 100 times
2sec,
manganese inside
Up
to
300 times
3sec,
the
opt ional SQ· 7*'
Up
to
600 times
30sec
,
'For autofocus operation assisted by the
AF
illuminator,
less number of flashes
available,
••
With four
AA·type alkaline·manganese batteries installed
in
the
58·22,
53
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