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Why do we use the course wheel first then the fine focus?
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Why do we use the course wheel first then the fine focus?

User Throttlehead
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Answer:

The coarse wheel moves the lens closer or away from the specimen, whereas the fine wheel focuses on bringing out the details in the specimen under low power.

User Vhu
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Answer:

according to the article what are three things people should consider when setting their ultimate fitness goals

User Andy Lee
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