SM-4 Series Stereo Microscope
AmScope Proprietary Page 26 of 37
6. Troubleshooting
6.1 Optical Issues
Obstructions are
observed in the field of
view
Stains, dust, or dirt has
accumulated on the specimen.
Clean the slide or use a new specimen if
sample is destroyed.
Stains, dust, or dirt have
accumulated on the lenses.
Clean the objective and eyepiece
lenses.
Stain or dust has accumulated
on the lens in the inlet of the
head.
Clean the lens with lens cleaner or a
nonabrasive lint free cloth, as well as
spray with compressed air.
The microscope head is not in
the right position to be focused.
Adjust the height of the microscope with
the focusing knob on the focusing rack
until image appears in focus.
Note: Higher magnification will require
the head to move closer, while lower will
require more distance between the
sample and the lens.
One side of the field of
view is dark or the
image moves while
focusing
The specimen is not fixed.
Secure the slide to the stage with clips
or another manner so that the sample
does not move.
The field of view is not
bright enough
The light source is not present.
A light source must be used with this
model micro-scope to view a sample
(ring light, built in illuminator, or
gooseneck illuminator).
The light source is too dim.
The light source used is not bright
enough, or is set at to too low an
intensity setting. Adjust setting to a
higher or change light sources.
Stains, dust, or dirt has
accumulated on the con-
denser, objective, eyepieces,
or base lens.
Thoroughly clean all lenses with lens
cleaner or a lint free nonabrasive cloth.
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