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Swing-out Filter Holder:
A filter holder is located under the iris diaphragm and a white diffusion filter is sup-
plied. Swing out the filter holder, insert the filter and swing it back to position.
The white diffusion filter diffuses and weakens the light. Other filters of 32mm dia.
can be used for different purposes if necessary.
MAINTENANCE OF MICROSCOPE
Model CN series microscope is designed such that only a minimum maintenance
work is necessary. Nevertheless proper care will extend the life of the instrument
considerably. There are five important rules you should observe.
1. Keep it away from dust. Always cover the microscope with the vinyl dust cover
provided, or put it back to the styrofoam container, whenever you are not using the
instrument. If dust gets on the lenses, blow it off with a rubber syringe or use a
camel's hair brush. Optical lenses are very soft, and can easily get scratched by
dust particles.
2. Do not touch the lens. Do not touch the lenses, finger print are difficult to remove.
Use a soft linen moistened with xylol to remove fingerprints.
3. Keep it away from moisture. Moisture is optical lenses worst enemy. Once you
get fungus on the lenses, they cannot be returned to their original condition. Keep
the instrument in a dry place.
4. Do not drop the microscope. Needless to mention, optical parts are very delicately
made and are easily broken. Also the mechanical parts are made with the highest
precision and will be damaged if dropped.
5. Do not dismantle. Fitting of all parts have been done with great care by skilled
experts, and once you dismantle, the smoothness of mechanical part or clearness of
optics will be spoiled. Return the instrument to an authorized dealer or to the
factory if need for dismantling arises.
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