2.2.5.
Focusing
Adjusting the rangefinder image and focusing are
made simultaneously by turning the movable part
of the gear focus wheel (fig. 3)
It is recommended (especially when shooting at
short distances) to coincide the two images seen
through the range finder window, on the center
of the focus field patch, rather than the edges. It
will ensure more precise focusing.
In situations when the use of the range finder is impractical (e.g., fast-moving objects, objects without sharp contours,
or dim light shooting), focusing can be done by using the distance scale.
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Shooting without the rangefinder (visual estimation of distances) can be done successfully only at small apertures,
i.e., when focus errors are compensated by depth of field.
2.2.6.
Composing
Composing the image with a 50mm lens is done through the built-in viewfinder. The limits
of
the field of view as
what would be on the film is seen through the eyepiece.
The universal viewfinder (or other accessory viewfinders) has to be used with lenses of other focal lengths.
2.2.7.
Shutter release
The shutter is fired by pressing the shutter release button
(6) (fig.3).
It is necessary to press the button smoothly and gently, so
as not to jerk the camera during exposure.