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~TIPS
ON UNDERWATER
PHOTOGRAPHY-confinued-
Camera positioning
For normal
shooting
,
hold
the camera horizontally
for subject
lighting
with good
contrast
(il lustration
#4).
Whenever
possible
,
avoid
shooting stra ight
down
on
the subject (i llustration
#1); the
sunlight
will
be
behind
the
camera
,
resu lting in
flat
,
low-contrast light ing.
As
it
is
on land
,
backlighting is
possible
underwater.
For
partially backlit subjects with
medium-contrast
lighting,
hold the
camera at an angle
toward
the
water's
surface (i llustration
#2).
For
dramatic backlit
scenes
in which objects
appear
as
silhouettes,
point
the
camera directly toward the water's
surface
(illustration
#3).
If more
detail in the
silhouetted sub-
ject
is
desired,
make an
exposure
compensation by
resetting the
ASA/
ISO film speed
dial
to a lower
number
(th
is
can be done
underwater),
by switching
to
the
manual
mode,
or by
using
a
speedlight. For
example,
with ASAIISO 400 fi
lm
,
reset the
dial
to
ASA/
ISO 200 for a one-stop exposure inc rease or
reset
the dial to
ASA/
ISO 100 for a two-stop increase
.
After taking the
shot,
do not forget to reset the
dial to its original
position.
62
Best depth of water for
AEshooting
If the water is ve ry
transparent
,
you can use the
Nikonos-V
in the A mode down to 20m
(656ft),
but
most pictures will
come out bluish
because
of
the
light
absorption of the water.
Diving deeper
wi
ll
not
ensure better photographs
;
most subjects underwater
are
no more than
10m (33ft) below
the
water's sur-
face.
For results, dive in
shallow areas
and
do
not
attempt
to
take
pictures
below a
depth of 4 to 5m
(13 to 16ft). If you want to
shoot
below th is
depth
, use
a
speedlight to restore
the subject's
natural colors
#1
o
sunl iQht
#2
0
~
~
Surface
of
~
Camera
~
the water
r
.
y
~
0
+
Subject
~.
#3
0
#4
0
~
~
~
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....
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. .
/ ' \
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