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Focusing
The distance
scales on
the
interchangeable
lenses
for the
Nikonos-V
are correct
for
on-land
use. When
using
these
lenses
underwater,
therefore,
you
must
set
the distance
scale
to 3/4 of the
actual or
measured
camera-to-subject
distance.
For example,
if
the
actual
or
measured camera-to-subject
distance
is 1.33m
(+.gtt),
the
distance
scale
should
be set at
1 m
(s.gtt).
lf
you
estimate
the distance
underwater,
though,
you
won't
have
any
problems;
the
water
has
the
same
magnifying
effect
on the
le ts as
it
does on
your
eyes.
So
just
set the
lens at the estimated
distance.
When shooting
underwater,
you
will
probably
find it
more convenient
to
keep the
lens set
at a specific
distance
and
reposition
yourself
at that
distance
f rom
the subject
than
to
set
the distance
for
each
subject.
When taking
photos
of
fish, set
the
lens to a specific
distance
and
then
release the
shutter
when
the
fish
swims
to
that distance.
For
best
results underwater,
shoot
with
a wide-angle
lens; its
deeper
depth of
field will
let
you
take sharper
ohotos.
)t
H
Walt
for the sublect to
move
lo the
prefocused
distance.
Move to the
prefocused
distance.
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