Reddit reviews SZM7045B1 Binocular Microscope with ST1 Stand, Fluorescent Ring Light

I'm using a SZM7045B1 but that's probably overkill (I bought it for electronics rework). The key thing is to get something you can use interactively (ie see what you're doing) so you need a bit of clearance and a holder. I know someone who used a USB (camera-based) for this, but I'm doubtful of how good of a clear magnification you can get if you're limited by the camera's resolution.