Best microscope for analyzing sharpness?
Hi all,I am looking for advice on which microscope is the best for analyzing sharpness. Intent: observe plane blades and chisels after individual/successive sharpenings on various media. I.e. Oil stones, waterstones, Arkansas, ceramic, strop, etc.I don't think I can afford an electron microscope. Who knows, maybe the prices have come down over the years. Maybe there's an electron microscope app for my iPad...... :DAny advice on an affordable microscope that will allow me to make meaningful observations would be appreciated.Thanks,Dan