16
3.2.2 Placing the Specimen
（
Fig.16-17
）
1. Place the specimen in the center of the
mechanical stage and use the stage clips to
clamp it.
2. Turn the portrait and lateral adjustment
knob
①
of the mechanical ruler, move the
specimen to the required position.
★
Be careful when changing the objective. If
you finish the observation with the short
working distance objective, and want to
change another one, be careful of not
letting the objective touch the specimen.
3.2.3
Adjusting
the
Interpupillary
Distance
（
Fig.18
）
The Interpupillary distance range:47mm
～
78mm.
While
looking
through
the
eyepieces, move both eyepieces until the
left and right fields of view coincide
completely.
3.2.4 Focusing the Specimen
（
Fig.19
）
1. Focus the specimen with 10X objective. To
avoid the objective touching the specimen
during focusing, you should raise the
mechanical stage to let the specimen close
to the objective at first, then slowly separate
them to bring the specimen to focus.
2. Turn the coarse focus knob conversely to
lower the specimen and search images in
the 10×ocular simultaneously, and then use
the fine knob
②
to focus. After that, you can
replace with other magnification objectives
safely, and focus without the risk of
damaging the specimen.
★
To make the observation more convenient,
you can use the locking set
③
to fix the
stage in a vertical direction.
①
Fig.16
Fig.17
Fig.18
Fig.19
②
③
