Widefield microscopy refers to techniques where the whole specimen is exposed to light.Typically, it is used for viewing samples at high magnification (25x- 1000x), which is achieved by the combined effect of two sets of lenses: The ocular lens (in the eyepiece) and the objective lenses (close to the sample).The image seen with this type of microscope is two dimensional. Detect the microstructure and materia defects easily during failure analysis, quality control and materials testing. Samples usually will be prepared with thin section for transmitted light illumination suits application like minerals, fibres, rock, or plastics and polished samples for application suits reflected light like microstructures, defects, cracks, or failure analysis.Microscopes have a variety of contrast techniques applies; brightfield, darkfield, DIC, Polarization for both transmitted and reflected light.