Preparatory drawing

The preparatory drawing is carried out, by means of the contour line to which chiaroscuro can be added, using a liquid or dry medium. A scheme of materials and procedures …

Infrared photography

The electromagnetic radiation that the human eye perceives is included in a wavelength range between 400 and 750 nanometers approximately. Beyond these limits, radiation …

Infrared reflectography in paintings analysis

Infrared reflectography has established itself as the most effective investigation technique in revealing the presence of preparatory drawings on the ground preparation.