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4.0 ADJUSTING THE MICROSCOPE
1
2
4-2-2 Moving the specimen
Move the specimen to the desired position by freehand or by tur
ning the knobs of the mechanical stage.
► When switching objectives, take care not to touch the adaptor
plates with the objectives, as their weight may damage the front
lens.
4-3 VIEWING TUBE
4-3-1 Dioptric adjustment (fig. 17)
1.
Look into the right eyepiece with your right eye only, and focus on the
specimen.
2.
Look into the left eyepiece with your left eye only. If the image is not
sharp, use the dioptric adjustment ring (1) to compensate.
►
The adjustment range is ±5 diopter. The number indicated on
the adjustment ring graduation should correspond to the ope-
rator’s dioptric correction.
4-3-2 Adjusting the interpupillary distance (fig. 18)
Observing with both eyes, hold the two eyepiece prism assemblies.
Rotate them around their common axis until the fields of view coin
-
cide.
► The graduation on the interpupillary distance indicator (3), poin
-
ted by the spot “.” (2) on the eyepiece holder, shows the distan
-
ce between the operator’s eyes (fig. 17).
The range of the interpupillary distance is 48-75mm.
4-3-3 Selecting the light path (fig. 19)
Pull the light path selector lever (1) sideways using your thumb,
selecting the light path you need.
Figure 17
Figure 18
Figure 19
1
Brightness
Application
IN
100% Used for binocular obser
-
vation
Binocular observation
OUT
20% Used for binocular observa
-
tion, and 80% used for video or
photography
Binocular observation, television,
and micrography or video can be
operated simultaneously
3