Layering: infrared and visible light

To compare this infrared reflectography image with a visible light image: when loading is complete, pull the black tab along the slider and release.
In this example, the underdrawing was executed in a dry medium, possibly black chalk. The underdrawing served as a working drawing, in which the painter worked out his composition. It also functioned as a guide for the painter's brush in the initial paint phase, and helped prepare shaded zones, as in the area to the right of the nose.
Click here to return to the IRR image of Portrait of a Man.