Equipment
Precaution while using Microscope
Equipment
Most vacuum evaporators do not have a safety switch to turn off power before opening the bell jar. Follow the instructions on the equipment. Never observe metal evaporation without goggles. The intense brightness can burn your retina.
Putting the microscope away
FOCUS ON SPECIMEN
Environmental factors
Introduction
light microscope could be the right choice
The coarse adjustment
BE CAREFUL 
Sharp Objects
Microscope with or without their glasses
Respect the light source
Mercury lamps
Can endure stationary positions for extended periods More ...
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