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TIPS ON SPEEDLIGHT PHOTOGRAPHY
1.
The flash -to-subject coupling distances and
usea-
ble apertures indicated by the exposure
calcu-
lation chart are for clear-water shooting. Therefore
,
the correct exposure will be different if the water
is muddy or has floating particles
,
and some
ex-
posure compensation must be made.
2.
In shallower depths with natural lighting
,
overex-
posure may occur when shooting in the automatic
mode.
To prevent this
,
use the smallest aperture
possible (the numerically largest f-number) or turn
off the speedlight and use only natural lighting
.
When shooting with the
Nikonos-V,
the correct
shutter speed for the lighting conditions is dis-
played in the viewfinder. (For more information
,
refer to the camera's instruction manual.)
3. The Nikonos -V's TTL flash control makes it easier
than ever to shoot close
-ups
with the optional
Close-Up Outfit. When using the optional Close-Up
Outfit, set the shooting mode selector/power
switch to
"TTL"
(Nikonos-V)or to "M1/4
"
(Nikonos
IV-A or Nikonos
III),
then turn on the SB-103 and
set the appropriate aperture on the
lens.
For best
results,
use smaller apertures (numerically larger
f-numbers)
and,
to prevent possible overexposure
,
attach the Wide-Flash Adapter SW-103.
4.
One of the benefits of using a speedlight under-
water is that it restores natural colors to subjects
by removing the water's bluish cast. Occasionally,
though, you may want to include that bluishness
in your
photos. Normally,
this is rather difficult to
do because the flash unit renders the background
either too light or too
dark.
To capture the
bluish-
ness, you must eliminate the difference in light
levels between the subject (illuminated by the
speedlight) and the background (illuminated by
natural
light)-
a difficult task in the manual flash
mode.
The easiest way to balance the light
levels
is to use the Nikonos-V and the SB-103 in the
TTL automatic mode and follow the procedures
explained in "
Daylight Fill-In Flash
Photogra-
phy" (page 23).
OPTIMUM BATTERY PERFORMANCE
24
1.
New
batteries
Between manufacture and first
use,
all batteries
exhibit some drain. Therefore
,
care should be
taken to purchase the newest (and freshest) ones
possible.
To help you do this
,
some manufacturers
stamp the date of manufacture on the bottom of
each
battery.
Ask your camera dealer for
assist-
ance in interpreting the
codes.
2.
Temperature
Battery life ratings are based on operation at
around 25°C (7]0 F). At other temperatures
,
bat-
tery life is shortened
.
Spare batteries should there-
fore be kept available if operation in low temper-
atu res is anticipated.
3.
Continuous use
Batteries are drained much more quickly by con-
tinuous use than by intermittent use.
4. Storage
When not in
use,
the batteries should be removed
to prevent damage from
leakage.
To minimize
drain during the period of disuse, store the
bat-
teries in a cool
,
dry place below 20°C (68°F).
5.
Battery brands
Do not
mix
brands of batteries or use batteries
with different model
numbers.
Also
,
avoid mixing
new and old batteries since proper performance
will not be obtained and battery leakage may
occur.
6.
Disposal
.
Do not dispose of batteries by burning
.
Also
,
for
safety's sake
,
never disassemble
batteries.
7.
Polarity
When installing
batteries,
observe the voltage
polarities
carefully.
Reversal of the positive (+)
and negative
(-
) terminals will resu lt in
leakage.
If
leakage should
occur,
take the SB-103 to an au-
thorized Nikon dealer or service
center.
The SB-103 requires an excessive
current,
so the
life span of the batteries may be shorter than
with other speed
lights.
8.
NiCd
batteries
In comparison with regular
batteries,
NiCd bat-
teries provide faster recycl ing and higher
effi-
ciency at low temperatures
. However,
the recy-
cling time and the number of flashes per battery
set depend upon the age of the
batteries,
their
charges
,
and their capacities
.
•
Do
not
continue to use NiCd batteries after they
are
exhausted.
Continued
use may reduce
their
life
span
or cause leakage.
•
Before
charging,
thoroughly read the battery and battery
charger
instructions.
.
•
Charging should only be
done for
the
designated
number
of
hours on
a
battery
charger
recommended by the battery manu-
facturer. Excessive charging may cause ba tte ry deterioration
.
•
Charging
should
only be done in te mperatures between
5°C
(41° F)
and
35°C
(95°
F).
Never cha rge batteries while they are
stiff
hot
from
use.
•
Never attempt to charge
NiCd
batteries that are incorrectfy
installed in
the battery cha
rger.
•
The charging capacity of
NiCd
batteries may be
shortened
after
a
long period of storage
.
If
this
occurs,
discharge and
recharge them several
times.
•
If working time is markedly reduced even
after
they have been
correctfy charged,
replace them with
a
fres
h
set
.
•
Do not mix new
and old
NiCd
batteries.
•
Do not
use NiCd batteries which
have
been cha
rged
for
dif·
ferent lengths of
time.
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