Nikon 2SB Photomic Gebruiksaanwijzing - Pagina 22
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Pagina afdrukkenEXPOSURE MEASUREMENT
The
exposure
meter
of the
Nikon
F2SB
Ph
otomic
camera's finder features a center-weighted
TT L metering
system coupled to the shutter speed and aperture con-
trols.
Th
e meter
reads
the
light
over the entire focusing
screen but favors the central
12mm-diameter
area.
This
allows you to
make
precise readings of the se lected sub-
ject area, and
results in more balanced
overall
ex
posures.
-
Underexposure"by more than 1 stop
0
-
Underexposure
by
1/5
to
1
stop
0
Correct exposure
+
0
Overex posu re by 1/5 to 1 stop
+
Overexposure by more than 1 stop
22
Determining Exposure
The
finder
has
three
LED
exposure
indicators
visible
within the
viewfield
("+"
for overexposure, "
0
" for
correct exposure, and "
-
" for
underex posure);
thus, the
metering
system
is
capab le of
providing
easy-to-read
ex-
posure information
in f ive steps, and even
at
extremely
low-I
ight
leve ls. Add
itionaliy, the
se lected shu tter speed
and lens aperture settings are
visible
for
maximum
ease
of operat io
n
for setting the
desired
exposure.
To determine the
correct exposure
with
the
Nikon F2SB:
Switch ON
the
meter by moving
t he fi lm-adva nce lever
to
the 20°
standoff
position; with this
action, one of the
LED
indicators will light, indicating
overexposure, cor-
rect
exposure
or underexposure.
If
the plus
(+)
indicator
I
ights, increase the
shutter speed or
decrease
the aperture
until
the center
(0)
indicator just
comes on a
nd
the
(+)
turns
off;
if
the
minus
(-
) indicator is
lit,
decrease the
shutter
speed
or
increase the
a perture
until the
center
in-
dicator lights. Wh en
two
LEOs light simul
ta neous ly
(i.e.,
+
and
0,
or
-
and
0).
the exposure
setti ng
is within
l -stop
of correct
exposure; thus, be
sure to adjust the
aperture
setting
slow
ly
to
get o
nly
the correct "center"
(0)
ex-
posure.
Va
lu
es
for the five
sett ings
of the
LEO
s are
described
in
the figure
o
n
this
page
.