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Setting the Lens Aperture
The lens aperture adjusts the light volume that reaches the film
and also the depth-of-field
The required "F" stop can be obtained by turning the lens aperture
ring until the figures align with the index mark.
The following table shows the relation between aperture value
and exposure time.
0.9
Lens aperture
5
Relative
exposure
1/4
time
The figures on the lens aperture ring can be set between two figures.
(see page 31).
1.2
1.4
1.8
2 3.5
1/3
1/2
1/1.25 1 3
4 5.6
8
11
4 8
16
32
64 128
13
16 22
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