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Axio Imager
Rotary stage Pol
Carl Zeiss
M70-2-0020 e 06/2009
430000-7344-001
71
3.34.3
Centering rotary stage Pol
With high-power objectives, stage centricity can be
exact only for one selected objective.
The centricity will be exact for all objectives, if an
objective nosepiece Pol is used.
In this case, swing the objective mount with DIC
slot into the operating position.
All stages are factory-precentered, i.e. while
rotating the stage the specimen feature set to the
center will remain in the center. If the specimen
feature moves off the center of the field of view
(3-57/
5
), while rotating the stage, the stage should
be recentered by following this procedure:
•
Before centering the stage, you must adjust
KÖHLER illumination on the microscope (see
Section 4.9.1).
•
For centering the stage, use a contrasty
specimen and an eyepiece with crossline reticle.
•
Loosen stage click-stop (3-57/
4
) or stage clamp
(on rotary stage Pol with clamping device) and
the screw cap of the stage carrier (3-57/
1
).
•
Rotate the stage to determine the position of
maximum offset of the specimen feature
(3-57/
5
, origin of arrow) from the center of the
eyepiece reticle.
•
Turn the two centering screws on the stage
carrier (3-57/
2
) with an SW 1.5 Allen key
3
) each to move the specimen feature by
half of the arrow length towards the reticle
center. Rotate the stage again to check if the
specimen feature moves off. Repeat the
centering procedure, if necessary.
•
After centering, retighten the screw cap
(3-57/
1
).
Fig. 3-57
Centering rotary stage Pol
