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5) If it is hard to clean, you need a little bit alcohol to clean the 100X objective lens and
the specimen.
Caution (important):
When you use the 100X objective to observe the specimen, you have to finish
observing the specimen with the 4X, 10X, 40X objectives.
When you use the 100X objective to observe the specimen, you have to apply the
immersion oil on the top of the slide cover.
When you apply the immersion oil with the 100X objective, do not let the immersion
oil to contact with the dry objective lenses (especially the 40x). If the immersion oil is
on the dry objectives lens, please use the lens cleaning paper to clean the
objectives lens in time. The oil will damage the dry objective lenses.
After observing the specimen with the 100X objective, clean the 100X objective lens
first.
3.5 Adjusting condenser
1) Turn the condenser focus knob to raise or lower the condenser.
2) The condenser is raised when using high magnification objectives and lowered when
using low magnification objectives.
Note:
The centering of the condenser and the light axis of the objective are factory
adjusted. Do not attempt re-adjustment.
The highest position of the condenser has been factory adjusted. Do not attempt
re-adjustment.
3.6 Adjusting interpupillary distance
While observing with both eyes, hold the left and right eye tubes, swing inwards and
outwards. The interpupillary distance is correct when the left and right fields of view
converge completely into one image.
3.7 Adjusting eyepiece diopter
1) Using the 10X objective and your right eye only, observe your specimen through the
eyepiece and bring it into focus by adjusting the focus knobs.
2) Then observe the specimen with your left eye only through the left eyepiece. If the
specimen is not in focus, rotate the diopter ring until a sharp image is obtained.
Fig.8
Fig. 8
(b)
(a)
