With
your specimen in focus under low power
and with your microscope properly
Kohlered, you can now move to the
"high-dry" (40X) objective. Just
move the objective into place. Do not
adjust the focusing controls before
doing this. It is good technique to
always observe the stage from the side
to make sure that the objective will
clear the slide. The objective lens
should never touch the slide!
Since your microscope is
parfocal,
meaning
once the specimen is focused under one
objective, it will be in aproximate
focus under other
objectives,
the specimen should still be visible
and still be in approximate focus.
Adjust the fine focus a bit to bring
the specimen into sharp focus.
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To
bring the specimen into sharp focus,
adjust the fine focus knob a
bit.
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