200nm Transmission electron microscope. What is a Light Microscope. Transmission Electron Microscope Tem Introduction To Jeol Products Jeol Ltd In contrast an e. . Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electron microscopy uses electrons instead of light photons for visualization. There are two common types of microscopes ie. The light source is replaced by a beam of very fast moving electrons. State with examples when different microscopes are used. Light microscopes illuminate their specimen using visible light and utilise lenses. In the Transmission Electron Microscope TEM the magnification focal length of the objective remains fixed while the focal length of the. Resolution is how sharp and clear your microscope can show an image State the resolution that can be achieved by each of the foll...