Microscopy at the ASD Laboratories covers a wide range of techniques from macro-imaging/photography through to microscopic observation by means of reflected and transmitted light. We focus also on texture analyses of artefacts surface by means of 3D approaches, based on stereoscopic and confocal microscopy. All these optical equipment have a CCD (charge-coupled device) camera to examine, processing and record the resulting image directly on a computer. This way we have a wide range of updated optical microscopy equipment and specifically adapted to the different scientific interests of the research team.