5.4 Focus by 10X objective
Put the 10X objective into the optic path and focus by turning coarse and fine focusing knob
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Turn the stage and focusing knob according to the direction shown in the picture
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There is no coarse focusing knob in one side of stage’s moving knob and in the other side there are
both coarse and fine focusing knob
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Never turn the left and right focusing knob in the adverse direction at the same time. Never turn
the coarse focusing knob when the stage is in the end of removing range. Otherwise it will make
damage to the instrument
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It is difficult to do focusing if turning the focusing knob optionally. The specimen may be crushed
when 100X objective is used. Please read the instruction carefully to avoid making damage to the
cover glass or objective
5.4.1 Put the 10X or 4X objective into optic path
5.4.2 Remove the stage to the top by turning the coarse
focusing knob
5.4.3 Observe through the eyepiece and turn the coarse
focusing knob slowly to let the stage down and down till there is
sharp image
5.4.4 Turn the fine focusing knob to focus finely
Use the 10X objective or 4X objective firstly before
40X and 100X objective. Turn the fine focusing knob to focus finely
5.5 Adjusting the diopter for eyepieces
Adjust the diopter ring according to user’s diopter for left and
right eyes. This function could make use of advantages of objectives
fully. Meanwhile it also can be react as focusing
5.5.1 Put the 40X objective in the optic path and turn the
coarse and fine focusing knob to do focusing
5.5.2 Put the 10X objective (or 4X objective) in the optic path
5.5.3 Let your left eye observe through the left eyepiece and do
focusing by the diopter adjusting ring in left eyepiece
5.5.4 Repeat the above steps till sharp image can be observed
by left and right eyepiece at the same time.
5.6 Adjusting the upright position for condenser
Turn the lifting knob for condenser till it reaches the top position then fall it a little bit down. If there
is dispersion image in the view field, please remove the condenser a little bit of up and down to make
the dispersion image disappeared
5.7 Objectives
Turn the nosepiece to choose the objective and adjust the view field diaphragm and aperture
