Chapter 3 Operation
3.10 Focusing Mechanism Operation
72
3.10.3 Retraction and Refocusing of Objective
ExFine
Fine
Coarse
Epi Shutter
FL Block
Refocus
Escape
L80
EYE
MEMORY
DISPLAY
ON
Z
-
RESET
1X
1.5X
BRIGHTNESS
R100
L100
FOCUS
PFS
Figure 3-27 Escape switch, Refocus switch
(1) Adjust the focus.
(2) Press the Escape switch.
(3) Press the Refocus switch.
Figure 3-28 Retraction and refocusing of objective
The Escape switch (objective retraction) and
Refocus switch (objective refocusing) on the right
side of the microscope can be used to move the
objective to and back from the retracted position
(approximately 2 mm below the reference position).
With the focus on the specimen, press the Escape
switch to record the current position and lower the
objective to the retracted position. The objective can
be brought back up to the focused position by
pressing the Refocus switch, making refocusing
easier. This function is useful for temporarily moving
the objective out of the way, for example when
replacing the specimen or changing the objective.
• When the objective is at the retracted position, its
height cannot be adjusted by rotating the focus
knobs.
When using the TI-ND6-PFS Perfect Focus Unit
or the TI-ND6-E Motorized Sextuple DIC
Nosepiece in combination with the TI-RCP
Remote Control Pad, the system can be set to
retract and refocus the objective automatically
when the objective is switched. For details, refer
to the instruction manual provided with the
TI-RCP Remote Control Pad.
Escape switch
Refocus switch
Objective
lowered to
retracted
position.
Objective
returned to
original
position.
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