6. High-magnification objec-
Specimen is upside down.
Set the specimen correctly
tive touches specimen
with the cover glass on the 10&11
just before coming into
top.
focus.
7. The tension of coarse fo-
Coarse focus adjustment
Loosen the ring to adjust to
cus adjustment knob is
Knob tension adjustment
proper tension
16
too high.
ring is set too tight.
8. Stage lowers due to its
Coarse focus adjustment
Tighten the ring to achieve
weight or focusing is lost
Knob tension adjustment
proper tension.
due to slippage of coarse
ring is set too loose.
16
focus adjustment knob.
9. Coarse focus adjustment
The condenser is too low.
Move it up.
knob cannot move the
14
stage low enough.
10. The fields of view of two
The interpupillar distance is
Adjust it properly.
eyes do not match (when
not adjusted properly.
13
a binocular tube is used)
Vision is not compensated
Adjust correctly.
14
for both eyes.
The left and right eyepiece
Replace a lens so that the
lenses are different.
left and right lenses are
6
Identical.
