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I need microscope help!! Can I use 40x objective lens for oil immersion??

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I'm not even sure I'm asking this question correctly! :D

It seems like you're supposed to use 100x lens, but my microscope only goes up to 40x. I've got some mineral oil here, and we're itching to try it. Also, I don't have a fine focus on my microscope. So do I focus in at 10x, move the lens between 10 and 40, drop the oil, then click in at 40x?


Can I clean it all up with my generic Home Training Tools "lens cleaner" and a soft cloth?

Do I reach under and wipe the objective lens? I don't have any kimwipes.


I really hope someone here can help me, I've been reading all afternoon, and watching youtube trying to figure this out.


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