2. Align film speed in use
'with the fiim speed index.
Note: Lines between the numbers on
the film speed scale represent inter
mediate settings. (See illustration.)
32
40'
64
80
125.
160
250
320
3_ Seiect 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 f/22. Selecting f/4 lets you take pictures of subjects
0.8m to 6.2m (approx. 2.6ft. to 30ft.) away.
25
50
' "100
200
400
^ y-
500'^r
640'^- 16oa
1000'
1250'
Ifl
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