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CONTROLS
IN
DETAIL-continued
___
_
Replacing the Target-light
If
the target-light burns out, replace
it
with a new one
(provided) by performing the following procedures:
1.
Remove the battery chamber cap (see page 8).
2.
Remove the C-type battery cartridge.
3.
Turn
the target-light holder @ counterclockwise ap-
proximately
45
°.
4.
Pull
up
on
the holder.
5. Remove the old lamp and replace
it
with a new one.
6.
Replace the holder and turn
it
clockwise 45°.
7.
Replace the C-type battery cartridge.
8.
Replace the battery chamber cap.
o
The
target·light can also be replaced by an authorized Nikon dealer or
service center
if
you desire.
58
·102
or
58
-
101
(master unit)
Wh
en
two or more flash units are the same distance
from the subject and face approximately the same
direction, the combined
GN
of the units can
be
deter-
mined with the following equation:
Combined GN = V GN
l'
+ GN2
2
+ GN3
2
+ .
Wh
ere
GN
1.
2.
3 are the guide numbers of the fla
sh
units
o Because the slave flash unit is triggered when the light from the master
flash unit reaches it directfy
or
is reflected to it by the subject,
if
the
light from the master flash unit does not reach the slave flash unit
or
if
there are strong light sources nearby, the slave flash unit will not fire.
For best results, test· fire the entire multiple flash system by test firing
the master flash unit before shooting.
o During
sl
ave flash photography, avoid other persons using speedlights
or
the bursts from their flash units will trigger your slave unit.
o
The
slave flash unit may be triggered by the light from a fluorescent
lamp.
30
Multiple
Flash
Photography
Th
e S8-102 has wireless slave flash capability, enabling
it
to
be
triggered by the light fired from another flash
unit.
For multiple flash operation as shown
in
the diagram,
use either
an
S8-102 or S8
-101
as the master flash unit
(the speedlight connected to the camera). Set the
T-S
switch of the slave flash unit (the speedlight not con-
nected to the camera) to "
SLAVE
" or
"T
&S."
After confirming that the flash units' ready-lights are
lighted, release the shutter to fire the master flash unit.
At
the same time, the slave unit will
be
trigger
ed
by the
light fired from the master flash unit.
o There is no limit to the number
of
SB·102 Speedlights that can be
used
as slave flash units
at
one time.
oFor multiple flash operation, all flash units must be in the manual
mode.
In
the
TTL
and non·
TTL
automatic shooting modes, the correct
exposure cannot be obtained because the light from each speedlight
alters the exposure measurement.
Daylight
Fill-In
Flash
Photography
Wh
en
shooting
in
daylight, a backlit subject may come
out almost
as
a
si
lhouette if the background
is
correctly
exposed. If,
on
the other hand, exposure compensation
is
made to correctly expose the s.ubject, the back-
ground may
be
washed out.
To
fill
in
the shadows and
balance the illumination levels of the subject and the
background
in
daylight shooting, use daylight fill-in flash
photography.
Wh
en
using the Nikonos-V, its viewfinder
LED
indicator
will blink to indicate
th
e correct shutter speed under
natural lighting.
To
obtain the correct exposure with
daylight fill
-in
flash shooting, turn
on
the flash unit and
se
le
ct progressively smaller f/stops (numerically larger
f-numbers) until the camera
's
1/125 second and 1/60
second
LED
s begin blinking or until eith.er the 1/60
second or the 1/30 second
LED
indicator blinks. Make
sure the subject
is
within the coupling distance range
and,
if the viewfinder ready-light
is
lighted, release the
shutter.
Operable
shutter
speed
(1/90sec
.)
Adjust the aperture until one
or two of these
LED
indicators
begins blinking.