Celestron 44302-B Manuel D'instructions page 10

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Your microscope with digital camera is a precision optical instrument and
should be treated with care at all times. Follow these care and maintenance
suggestions and your microscope will need very little maintenance throughout
its lifetime.
• Store the microscope in a dry and clean place.
• Be very careful if using your microscope in direct sun light to prevent
damage to the microscope or your eyes.
• Never point the microscope towards the sun or the camera can be
damaged and cease working.
• Clean the outside surfaces with a moist cloth.
• Never clean optical surfaces with cloth or paper towels as they can scratch
optical surfaces easily.
• Blow dust off the optical surfaces with a camel's hair brush or an air blower.
• To clean fingerprints off of optical surfaces, use a lens cleaning agent and
lens tissue available at most photo outlets and when cleaning do not rub in
circles as this may cause scratches to occur.
• Never disassemble or clean internal optical surfaces. This should be done
by qualified technicians at the factory or other authorized repair facilities.
• Do not disassemble or take apart the microscope or damage can occur.
• When handling glass specimen slides, use care as the edges can be sharp.
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