SM-4 Series Stereo Microscope
AmScope Proprietary Page 16 of 37
To install a Barlow Lens, first remove the adapter
and light ring from the bottom of the objective lens
housing, if you are using a ring light.
Screw a Barlow Lens into the bottom of the
objective lens housing.
If you are using a ring light and the
0.5 Barlow Lens, screw the light
ring adapter into the Barlow Lens
and the ring light into the adapter.
The decreased magnification
requires a greater working distance,
so you will need to raise the
focusing rack.
If you are using a ring light and the
2.0 Barlow Lens, the mounting
adapter for the ring light is built into
the lens, so the ring light adapter
isn‟t needed. The increased
magnification requires a shorter
working distance, so you will need
to lower the focusing rack.
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