11
A12.0910
3-3 Select the Light Path
For trinocular head, the light path selecting pole
①
control the light-energy ratio of binocular and trinocular.
When the light path selecting pole is pushed to the
innermost, all the light will enter the binocular head.
When the light path selecting pole is pulled to the
middle position, binocular and trinocular can be
observed simultaneously. When it is pulled to the
outmost, all the light will enter the trinocular head,
which can only used for trinocular observation
(TV&Photography). (See Fig. 13)
3-4 Adjust Focusing
(1) Put the slice on the stage, and hold it down with the
clip. Shift the 4X objective into the light path. (See Fig.
14)
(2) Loosen the random upper limit knob
①
, then
observe the right eyepiece with the right eye. Rotate the
coarse focusing knob
②
until the image appears in the
view field, then lock the random upper limit knob
①
.
★
The random upper limit knob can prevent the
objective touching the slice when focusing.
★
The random upper limit knob does not react
on the fine focusing knob.
(3) Rotate the fine focusing knob
③
for clear details.
★
When observing with the 4X or 10X objective,
open both the aperture diaphragm and field
diaphragm to the maximum position, and swing
out the front condenser lens. See “3-9 Center the
Condenser” for condenser operations.
Fig.14
Fig.13
