Optika Italy B-510 Series, Instruction Manual

Page: 18 / 162

Page 18
• Use without eyeglasses
Raise eye shields and observe at the microscope placing eyes
to the shields, avoiding external light to disturb the observation.
(Fig. 22)
F Fig. 22 ig. 22
F Fig. 23 ig. 23
F Fig. 25 ig. 25
FFig. 24 ig. 24
①
②
③
10.8 Centering of reflected light diaphragms
10.8.1 Field diaphragm (FS)
1. Move the selector
①
on the reflected light illuminator in the
position corresponding to letter “R”
(only B-510MET-R)
. (Fig.
23)
2. Place the specimen on the stage, insert 10x objective into
the light path and focus.
3. Completely pull out the field diaphragm selector
②
to fully
close the diaphragm.(Fig. 24)
4. Using the provided Allen wrench use the two centering
screws
③
to bring the bright spot in the center of the field of
view.
5. Gradually open the diaphragm. The condenser is centered
when the diaphragm image is symmetrical to the field of
view. (Fig. 25)
6. In normal use, open the diaphragm until it circumscribes the
field of view.
10.8.2 Effects of the field diaphragm
Field diaphragm adjusts the illuminated area to obtain a high
contrast image.
Set the diaphragm according to the objective in use until it
circumscribes the field of view, in order to eliminate unnecessary
light to eyepieces.