27
III. Operation of Each Part
ND8
NCB
F.S.
0.4
0.2
0.8
0.6
JAPAN
Achr
0.90
0
BINO
PHO
TO
PHO
TO
BINO
&
BINO
PHOTO
BINO
PHOTO
&
Lever
position
Binocular part
Vertical tube
Distribution of light
100
1
0
20
2
80
0
3
100
1
2
3
6
Trinocular Eyepiece Tube Operation
Optical path selection
The optical path selector lever can be used to
select the way to distribute light to the
binocular part and the vertical tube.
When the lever is pushed in as far as it goes,
the distribution of light for the binocular part
is 100%. When the lever is pulled out, the
distribution of light for the vertical tube is
100%. When the lever is at the middle
position, the distribution of light for the
binocular part is 20% and the distribution of
light for the vertical tube is 80%.
Vertical tube adapter
The TV vertical tube adapter or the TV
vertical tube adapter 0.55x can be mounted on
the vertical tube section of the trinocular
eyepiece tube.
To mount the adapter, remove the cap from the
vertical tube section of the trinocular eyepiece
tube, insert the vertical tube adapter, and fix it
with three screws on the vertical tube section
with the attached tool.
Disabling the clicking of the optical
path selection lever
The trinocular eyepiece tube has a “NO
CLICK” switch on the tube attaching surface.
Slide this switch in the direction of the arrow
with the tip of a pointed tool to disable
clicking for the optical path switching lever.
Set the switch to this position if you need to
eliminate the slight vibrations resulting from
the clicking action.
NO CLICK
