Nikon SB-102 os Manual de instruções - Página 24
Procurar online ou descarregar pdf Manual de instruções para Acessórios para câmaras Nikon SB-102 os. Nikon SB-102 os 36 páginas. Speedlight
Imprimir página
CONTROLS IN DETAIL-continued
_ _ _ _
Non-TTL Automatic Flash Control
When using the
optional
Sensor
Unit SU-101
,
you can
select
one of two useable
apertures.
The
useable apertures vary according
to
the
ASAIISO
speed of the film in
use,
but they can be easily deter-
mined with the exposure calculation dial.
When
the correct shooting situation
mark
is aligned
with
the correct speed on the
ASAIISO film
speed scale,
the
non -TTL
auto shooting aperture index
@
above
the
shooting situation
mark
indicates the useable apertures
(color-coded green and
pink)
on the non-TTL auto
shooting aperture scale.
To obtain
the correct exposure, choose one of the two
useable
f/stops and set the index on the sensor unit's
selector dial to
either
the pink
circle
or the
green square
to
correspond
to the color of the
aperture selected.
Before
doing
this remember to take the
flash-to -subject
distance
into
consideration
.
•
When
the shooting
situation
mark
index
is
aligned with an
intermediate
setting
on
the ASAIISO
film speed scale (for
example, ASAI
ISO
64),
the non·
TTL
auto
shooting
aperture
index indicates
two useable
inter·
mediate apertures on
the
non·
TTL
auto
shooting
aperture
scale.
In
this
situation,
set one of the two
intermediate
apertures on the lens
.
•
In non-TTL automatic
operation,
the minimum
flash-to-subject coupling
distance
is always a.6m
(2ft).
The
maximum
flash-to-subject coupling
distance
is
determined by your
choice of shooting situation
marks
regardless
of
the ASAIISO
speed of
the film
in
use.
The coupling
ranges
that
correspond to the
four
shooting situation
marks
are shown in the
chart.
24
Example:
When
shooting underwater
. .
while using
ASA/ISO
100
fi lm,
the useable
f/stops
indicated
on the non-TTL
auto
shooting aperture
scale
are fl4 and f/S.
Using
the
aper-
ture scale
,
distance
lines,
and distance scale
,
the
flash-to-subject coupling
distance
ranges are
deter-
mined to be from 0.6 m
(2
ft) to 4 m
(13.1
ft) for f/4
and
from 0.6m (2ft) to 2m
(6.6ft)
for f/S.
Therefore,
when
the
subject
is
beyond
2
m
(6.6ft), you
must select
f/4.
When the subject
is
within
2m
(6.6ft), you can choose
either fl4 and f/S. If larger depth of field
is
desired
,
use
f/S
;
if shorter recycling time
is preferable
,
select
f/4
.
Remember
to set the sensor unit
's selector
dial to the
same color-coded position as the aperture on the
exposure calculation dial you have
selected.
Non·TTL Auto Shooting Range
Unit:
m
(tt)
Shooting
I
SU·101 's Selector
I
.
.
Situation Mark
Dial Setting
Coupling Distance
•
O
(pink circle)
0.6 to 8
(2
to 26)
D(green
square)
0.6
to
4
(2
to 13)
W
O
(pink
circle)
0.6 to
5.6
(2
to 18)
•
D
(green
square)
0.6
to
2.8
(2
to
8.9)
ell
O
(pink circle)
0.6 to 4 (2 to 13)
D(green
square)
0.6 to 2
(2
to
6.6)
W
O
(pink
circle)
0.6 to 2.8
(2
to 8.9)
ell
D
green
square)
0.6 to
1.4
(2
to 4.3)