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8.4 Observation Tube
8.4.1 Adjusting the Interpupillar Distance
●
While looking through the eyepieces, adjust for binocular vision until the left and right fields of view
coincide completely.
●
The Index dot
indicates the interpupillary distance.
Fig. 9
8.4.2 Adjusting the Diopter
●
The diopter adjustment ring is used when the eyepiece has no function of diopter adjustment.
●
Looking through the right eyepiece (there is no diopter adjustment ring), rotate the coarse and fine
adjustment knobs to bring the specimen into focus
●
Looking through the left eyepiece (there is a diopter adjustment ring), turn only the diopter
adjustment ring
to focus on the specimens.
Fig. 10
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