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Which objective lens must you always rotate into place, before and after focusing on a specimen
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Which objective lens must you always rotate into place, before and after focusing on a specimen

User Sarveshseri
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1 Answer

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When focusing on a slide, ALWAYS start with either the 4X or 10X objective. Once you have the object in focus, then switch to the next higher power objective.
User Karthikeyan P
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