The initial examination of any work of art uses normal light, frequently aided by magnifying instruments, to zoom in on features of special interest. 

The stereomicroscope can be used to examine a surface in great detail. In this example an underlying reddish brown paint layer is revealed through the cracks in the upper blue layer, indicating that the artist made a significant revision.

The initial examination of The Old Guitarist revealed brushwork that did not appear to correspond with the image of the Guitarist. This is most apparent around the head and shoulders. By adjusting the light to a raking angle one can emphasize the brushwork in order to make its texture more visible.

The Old Guitarist seen under microscope.

Click and drag your mouse to inspect different areas of the zoomed image.

Use the "shift" and "control" keys on your keyboard to zoom in and out of the image.

You will need to install the Quicktime 5.0 plug-in to view this properly.