Using The Pre-Focusing Lever - Olympus MX63 Instructions Manual

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Using the pre-focusing lever

Using the pre-focusing lever controls the vertical movement of the stage
no further than the arbitrary position when rotating the pre-focusing lever.
With this function, the approximate focal position can be reproduced or
the collision between the stage and the objective can be prevented.
Note, even though the pre-focusing lever is used, the vertical movement
of the stage is not restricted with the fine focusing knob.
Setting the upper limit of coarse adjustment
1
Bring the sample into focus.
2
Rotate the pre-focusing lever a in the arrow direction to set to LOCK.
The current stage position is set to the upper limit when rotating the
coarse focusing knob.
Focusing in LOCK status
1
Rotate the coarse focusing knob to lower the stage position and place
the different sample on the stage.
2
Rotate the coarse focusing knob to lower the stage and when the
stage touches the upper limit, stop rotating the coarse focusing knob.
If the thickness of the sample is almost the same, the sample
TIP
is in focus approximately at the upper limit position.
3
Rotate the fine focusing knob to bring the sample into focus.
Canceling LOCK
1 Rotate the pre-focusing lever a in the arrow direction to cancel LOCK.
When the pre-focusing lever is set to the LOCK position,
NOTE
the stage is not lowered to the lower limit. To lower the
stage to the lower limit, cancel LOCK.