Chapter 2 Observation Steps
47
4
Fully open the aperture diaphragm.
Set the aperture diaphragm lever to the position of
100x of the adjustment position mark of aperture
diaphragm.
Fully open the aperture diaphragm.
5
Adjust the brightness.
djust the brightness by rotating the brightness control
knob.
Adjust the brightness.
6
Adjust the interpupillary distance.
Adjust the distance between the binoculars. (Set the
distance so that the right and left viewfields are
merged into one when looking through the eyepieces.)
When the binocular part is turned upward, the eye
level is raised, and when it is turned downward, the
eye level is lowered.
Viewfield
Adjust the interpupillary distance.
7
Align the diopter ring with the standard
position.
Turn the diopter ring on the eyepieces to align its
bottom edge with the engraved base line.
Perform this procedure to the right and left eyepieces.
Set the diopter ring to the standard position.
Engraved
base line
100x
Eye level is raised
Eye level is lowered
Bottom edge of the
diopter ring
The bottom edge of
the diopter ring is
aligned with the
engraved base line.
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