It’s [Steve’s] LED light ring for a stereo microscope. It’s also a shout ... with any high-end optical microscopy. Are these features something that is available on commercial hardware ...

The cheap education-grade microscope cost around $50 USD, had few features, and wasn’t much ... an epi-illumination setup for doing reflected light microscopy. If you’re eager to build a ...

You should not look through the microscope to do this. Line it up so that the specimen - if you can see it - is in the centre of the stage, where the light passes through. Focus the slide by ...