Zeiss Axiolab A Bedienerhandbuch PDF herunterladen (Seite 48)

Carl Zeiss Axiolab A

3-6 B 40-015 e 06/99

(1) Centering of Objectives (only for Axiolab Pol catalogue No. 450910-0000-000)

Fig. 3-4 Centering of objectives

When the Pol stage (3-4/3) and uncentered objectives are turned, object details above the center of the

eyepiece cross migrate to circular paths (3-4/1 - dashed line). The following procedure is required to

center the objectives:

• Unlock the stage stop by turning screw (3-4/6) by approx. ¼ rotation in counterclockwise direction.

• Swing in transmitted-light objective of medium magnification (20× - 50×) via the nosepiece.

• Insert SW 1.5 key (3-4/2) in the drilled centering holes on the nosepiece.

• Turn the specimen stage and search for the apparent center of rotation (cross (3-4/1)). The center of

rotation is also the center of the stage rotation.

• Use the keys to move this center of rotation to the intersecting point of the eyepiece crosslines and

therefore into the optical axis of the microscope.

• Repeat the procedure with a distinct, small object detail in the direct proximity of the center of the

rotary stage.

• Carefully remove the key.

• Swing in the neighboring objective; search for the center of rotation and the distinct object details

and perform the adjustment procedure as described above.

☞

To retain the centering status, it is absolutely necessary to change the objectives only via the

knurled ring of the objective nosepiece.

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Zeiss Axiolab A Bedienerhandbuch Seite 48