Chapter 3 Usage of Components
69
3.11.3 Using the Objective Refocusing Lever
The focus knob on the right side of the microscope is
equipped with an objective refocusing lever for
setting the current objective position as the rotation
limit of the coarse-focus knob by turn the lever to the
vertical position (CLAMP). This can prevent the
objective from touching the specimen when the
coarse-focus knob is operated.
Operation:
Objective refocusing
lever
Vertical movement of
the nosepiece
(by the coarse-focus
knob)
Turn
the lever
to the
vertical position
(vertical upward)
(in the direction of the
CLAMP arrow).
The knob is restricted
to prevent the objective
from
moving beyond the
current position.
Pull the lever to the front
(in the opposite direction
to the CLAMP arrow).
Vertical movement
restriction
is released.
This lever does not influence the movement of the
fine-focus knob. This means that the objective can
be moved above the limit position by turning the
fine-focus knob.
Using the objective refocusing lever
Escaping and restoring the objective with the refocusing lever
When the objective is escaped to change the specimen or switch the objective,
using the objective refocusing lever enables the user to restore the focus to its original position easily by
simply turning the coarse-focus knob to the limit of its rotation.
Objective
refocusing lever
Clamp
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