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((Ocular lens, Objective lens, Total magnification, 10 X, 4 X, 40 X, 10 X,…
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Are used to observe larger objects, such as whole insects.
This means the specimen does not have to be so thin, it could be any size and shape.
Do not have their own light source, so the light must be provided by an external lamp.
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You can also work on a specimen while viewing it because there is more room between the lens and the specimen.
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Use light from a lamp or mirror, which is passed up through the specimen.
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