17
4. Slightly loosen the intermediate adapter clamping screw ƒ. (Fig. 20)
5. While observing the field of view, rotate the intermediate attachment for
orthoscopic observation (U-OPA) | until complete extinction is obtained.
At this point, tighten the intermediate attachment clamping screw ƒ.
(Fig. 20)
6. Remove the provided alignment polarizer.
7. Attach the condenser.
8. Center the condenser. (For details, see instructions of each microscope.)
9. Centering the rotatable stage (Figs. 21 & 22)
(1) Place the specimen.
(2) Focus on the specimen and look for an easily recognizable detail …
in the field. Move this detail in the center of the eyepiece cross lines.
(3) When the stage is rotated, the detail moves in circle †. Manipulate
the two stage centering knobs ‡ to coincide the imaginary center of
the circle † circumscribed by the detail with the intersection of the
eyepiece cross lines.
(4) Moving the specimen only, move a new specimen detail into the
cross line center.
} Repeat steps (3) and (4) several times until the center of the stage
rotation is in the center of the cross lines, i.e., when rotating the stage,
the specimen stays in the center of the cross lines.
Fig. 20
Fig. 21
