Optical microscopy is often the starting point for successful materials related failure and root cause analysis. It helps clients fully understand microstructure and other materials properties. The goal of optical microscopy is to produce clear and high quality images with high magnification (up to 1000X). Upright microscopes are the most common type, where the objective lens is above the stage and lighting system can be from top (reflected, bright field), bottom (transmitted) or sides (reflected, dark field). The microscopes can also provide polarized light imaging, and DIC (Numarski) imaging to support advanced research, analysis and inspection.