Leonardo da Vinci, Mona Lisa (1503–1517) Photo: Wikipedia Commons
Source: Artnet news
One of the greatest mysteries in art history has been solved: British academics say they have discovered the secret behind the smile of Leonardo da Vinci's Mona Lisa by studying a recently discovered portrait by the Renaissance master, La Bella Principessa.
By comparing the techniques employed in the two works, scientists from Sheffield Hallam University claim to have proved that the enigmatic “now you see it, now you don't" effect of the Mona Lisa smile was intentional on the part of da Vinci. They have named it "the uncatchable smile."
The epiphany came by studying La Bella Principessa. The earlier painting, which portraits the young illegitimate daughter of a Milanese Duke, has the same effect as the Mona Lisa: from some angles the young lady seems to be smiling, from others, the smile appears to have vanished.
Leonardo da Vinci , La Bella Principessa (c. 1496) Photo: via Art Daily
“La Bella Principessa's mouth appears to change slant depending on both the viewing distance and the level of blur applied to a digital version of the portrait," the researchers wrote in a paper published in the journal, Vision Research, according to the Telegraph. “Through a series of psychophysics experiments, it was found that a perceived change in the slant of La Bella Principessa's mouth influences her expression of contentment."
Volunteers were asked to look at the painting from a variety of angles and distances. The conclusion was that, when focusing on the eyes of the painting, viewing from a distance, or when digitally blurred, a delicate smile could be seen. When viewed close up, or focusing on the mouth, however, the smile disappears.