-11-
MT-50
Series
3-7
Center the Condenser
1. Rotate the condenser up-down knob
①
to raise
it to the highest position (see Fig. 16).
2. Rotate the objective 10X to the light path and
focus the specimen.
3. Rotate the field diaphragm adjustment ring
②
to put the field diaphragm to the smallest position.
4. Rotate the condenser up-down knob
①
, and
adjust the image to be clearest.
5. Adjust the center adjustment screw
③
and
put the image to the center of the field of view
(see Fig.17).
6. Open the field diaphragm gradually. If the
image is in the center all the time and inscribed to
the field of view, it shows condenser has been
centered correctly.
7. In fact, you can enlarge the field diaphragm a
bit and make the image circumscribed to the field
of view.
3-8
Adjust the Field Diaphragm
By limiting the diameter of the beam entering the
condenser, the field diaphragm can prevent other
light and strengthen the image contrast. When the
image is just on the edge of the field of view, the
objective can show the best performance and
obtain the clearest image.
Fig. 16
Fig. 17
