We had one of those at university. They are an order of magnitude nicer to use than a normal stereo microscope. It takes a little bit of getting used to the mag

We had one of those at university. They are an order of magnitude nicer to use than a normal stereo microscope. It takes a little bit of getting used to the magnification and your hand/eye coordination, but I could happily use it for 8 hours with no pain.