Motic SMZ-171 BL, Instruction Manual

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3. MICROSCOPE ALIGNMENT AND OPERATION
3.1 Interpupillary Distance
Adjust the two eyepiece tubes until only one circular field can be seen through the two eyepieces. If two
separate circles appear, the interpupillary distance is too large; if two overlapping circles appear, the
interpupillary distance is too small. The eyepiece tube allows a flexible adjustment of the interpupillary
distance between 48 and 75mm.
3.2 Focusing the Microscope
To focus the sample, use the focusing knobs located on both sides of the head holder (Fig.3). By
turning these knobs, the microscope can be moved up or down a certain distance to focus the sample.
This movement is enabled by a
“rack and pinion”
mechanism. The tension of the focusing knob can
be adjusted using the tension knob located in the inner region of the focusing knob on the right (Fig.4).
If a sharp focus cannot be achieved using this knob, release the locking screw and support collar and
move the whole microscope up or down.
(Fig.3) (Fig.4)
3.2.1 Using the focusing knob, focus the sample using the highest magnification strength. If the
sample cannot be brought into focus, adjust the height of the microscope along the column.
Remember to tighten the locking screw and support collar after adjusting the height of the
microscope.
3.2.2 Turn the zoom to the highest magnification. Adjust the focusing knob until a clear and sharp
image is obtained.