Nikon F3 Manuale di istruzioni - Pagina 21
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Exposure compensation dial
@
Another way to correct exposure is to use this dial. Push
the
locking button
@
while rotating the dial. The dial is
graduated in one-third stop increments. -1 and -2
indi-
cate one and two stops underexposure
,
whereas
+
1 and
+
2 indicate one and two stops overexposure.
At ASA 6400, the compensation extends to only -1
;
at
ASA
12,
up to
+
1.
The following table indicates the
recommended settings for various subjects. After use
,
make sure you set the dial back to "0."
~
Repro
-copying
&
slide-copying
Photo-
B&W
I
leiters or
figures
on
I
Letlersor
' igures
on
microg raphy
Type
oflilm
color
photo
light
~ck.ground
dark background
Panchrom4tic film No
compensation
I
+
1-
113
stops
I
-2/3
stop
+
1
stop
for general use
necessary
ASA film speed dial
@
The scale
@
on the ASA dial has numbered settings for
speeds from ASA 12 to
6400.
Two dots between each pair
of ASA numbers stand for intermediate settings, such as
64,80, etc
.
The table below gives the speeds for all
inter-
mediate settings
.
ASA is a numerical rating of the film's sensitivity to a
given amount of light. The higher the number, the
greater the sensitivity, and vice versa. The ASA of your
film is indicated on the cartridge itself
.
It is also printed
on the film carton and on the data sheet packed inside.
21