13
STEINDORFF
®
3.3.1.
Adjusting the diopter (Figure 21)
1.
Look into the right binocular by your right eye, then
revolving the coarse focus knob to focus on the specimen.
2.
Then use your left eye to look into the left ocular. If the
image is not sharp, just use the diopter adjustment ring
①
to adjust.
There are ±5 diopter in the adjustment ring. The
number which the reticle on the eyepiece holder pointed
is your eye’s diopter graduation.
3.3.2.
Adjusting the interpupillar distance (Figure 22)
When observing with two eyes, hold on the left and right prism
holder, turn around the axis, adjusting the interpupillar distance
until the left and right fields of view coincide completely.
The reticle on the interpupillar distance indicator,
pointed by the spot “.” on the eyepiece holder, shows
the scale of the interpupillar distance. (Figure 21)
The range of the interpupillar distance: 55
~
75mm.
3.3.
The viewing tube
Figure 21
Figure 22