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2.Align
film speed
in
use
with the film speed index.
Note: Lines between the numbers
on
the film sp
ee
d scale represent inter-
mediate setti
ng
s. (See illustration)
32
:~~
:25
8P~
:50
125-........=
100
1
60-=
200
;~~/~
400
500~:
800
1
:;/;1:
1600
1
250
1
3. Select and set aperture.
The
aperture scale window shows usable apertures. (Depending
on
film speed
in
use, all usable apertures may not
be
shown
in
the aperture
scale window; for usable apertures,
see
table
on
page 20.)
For example, with the film speed index
at
ISO
100
,
you
can select any
aperture from f/2
to
1/22
. Selecting f/4 lets
you
take pictures of subjects
0
.8
m
to
6
.2
m (approx. 2.6ft.
to
30ft.) away.