This is a truly amazing microscope set. It works as advertised. The view is very sharp and clear once you get the focus right. I work in a research lab. In my experience, this microscope works just as well as a professional one. But it's much cheaper than a professional microscope. Under this microscope I can clearly see sweat coming out of my skin (it's really amazing). My very small complaint is that the side light source is a bit awkward to screw up and down the microscope. And I don't know what that's for Ring is used (my last photo). But not everything bothers me, because the microscope works very well without the ring.
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