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• In the place of an eyepiece, insert the focus-
ing telescope (Fig. 36) into the observation
tube.
• Swivel in the phase contrast objective with
the lowest magnification.
• Focus on the specimen with the focus wheel.
• Focus the ring structure (37.a) by slightly loos-
ening the clamping ring (36.2) and moving the
eye lens (36.1).
• Retighten the clamping ring.
• Select the corresponding ring diaphragm
(light ring) in the condenser.
• If the light ring and the phase ring are not
shown as arranged in Fig. 37.c, the light ring
must be centered.
• Insert the centering screws into the openings
provided at the rear of the condenser (38.1).
Fig. 38
Light ring centering (i.e.: condenser UCA/P)
1
Centering keys
1
• Turn the centering screws until the dark ring
(phase ring in the objective) is congruent with
the slightly narrower bright ring (light ring in
condenser) (37c).
• Repeat the process for all other light rings.
• Remove the centering keys after the
centering procedure.
7.4 Adjustment of Condenser Prisms
If the equipment was delivered together, the
condenser prisms will already have been ad-
justed at the factory, but it advisable to check
the adjustment from time to time, especially af-
ter transport.
• Pull out the objective prism slide (39.1) fully or
partway.
Fig. 39
1
Objective prism slide
1
7. Start-up
1
37
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