When changing to a higher power objective lens, recall what you should not do.
Question
When changing to a higher power objective lens, recall what you should not do.
Solution 1
When changing to a higher power objective lens on a microscope, here are the things you should not do:
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Do not force the lens into place: If the lens does not easily click into position, do not force it. This could damage the lens or the microscope.
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Do not touch the lens with your fingers: Our fingers have oils and other substances that can damage the lens. Always use lens paper or a special lens cleaning solution to clean the lens.
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Do not use the coarse adjustment knob: When you are using the high power objective, you should only use the fine adjustment knob to focus. Using the coarse adjustment knob can cause the lens to hit the slide, which could damage the slide or the lens.
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Do not move the slide drastically: When you are viewing a specimen under high power, the field of view is very small. If you move the slide too much, you could lose your place and have a hard time finding the specimen again.
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Do not forget to adjust the light intensity: When you switch to a higher power objective lens, you may need to adjust the light intensity to properly view the specimen.
Solution 2
When changing to a higher power objective lens on a microscope, here are the things you should not do:
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Do not force the lens into place: If the lens does not easily click into position, do not force it. This could damage the lens or the microscope.
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Do not touch the lens with your fingers: Our fingers have oils and other substances that can damage the lens. Always handle the lens by its holder.
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Do not use the coarse focus knob: Once you have moved to a higher power objective lens, only use the fine focus knob. Using the coarse focus knob can cause the lens to hit the slide, which could damage the lens or the slide.
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Do not neglect to adjust the light: When you move to a higher power objective lens, you may need more light to see clearly. If you do not adjust the light, you may not get the best possible view of your specimen.
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Do not forget to re-center your specimen: When you change lenses, the specimen may move out of the center of the field of view. Always re-center your specimen after changing lenses.
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