Camera Obscura

A camera obscura ("dark chamber") is an optical device in which light passing through a small aperture into a darkened space or box projects an inverted image of the outside scene onto an opposing surface — the ancestor of the modern camera. Since the 1890s, scholars have debated whether Johannes Vermeer used a camera obscura to achieve the uncannily accurate perspective, selective focus, and luminous highlights (the small blurred dots called "pointillé") seen in paintings like View of Delft and The Milkmaid. No documentary evidence proves Vermeer owned one, and the debate remains unresolved, but the optical qualities in his work are distinctive enough that the theory persists as one of the great open questions of art-historical detective work, intersecting art, science, and connoisseurship.