Focusing Fixed focus setting
Always focus with the lens set to the
longest focal length (56 mm).
Look for a prominent vertical line in
the subject and turn the focusing ring
until this vertical line appears conti-
nuous (without being broken) across
the dividing line of the split image
field.
When focused, the lens can be set at
any focal length and the image will
stay in focus (as long as the actual
subject distance remains constant).
10
Should the vertical line become
slightly broken when zooming to-
wards the wide angle, do not try to
re-focus. This is caused by the design
of the optical system and has no
practical significance.
If one half of the split image field
appears unsharp or darker, move the
camera slightly sideways or up and
down in front of the eye until both
halves of the field appear equally
bright.
For instant readiness the focusi~g
ring can be set to the
markczz
bet-
ween 10 and 13 feet and the zoom
knob to 12. This combination pro-
vides a sharp image from about 6';'
feet to infinity, even in relatively poor
light.
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