Olympus CHA - Page 8

Automatic
pre-focusing lever
Condenser height adjustment
knob
The condenser is generally used
at top position. For use with
objectives lOX and lower power,
however, it is recommended to
lower the condenser properly to
eliminate uneven field illumina-
tion.
Aperture iris
diaphragm lever
Filter mount
Slip-in type .
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Accepts 45mm diam. filters.
Lamp mount
Lamp house clamping knob
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6
The lamp house cover can be
opened by pulling down the knob;
or closed by pushing it up until it
snaps in place.
Before pushing, ascertain
that the
knob is positioned as shown in
the picture right, marked with
circle.