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 ...

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 ...

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 ...