Camera obscura, 1646. A double camera obscura, rather out of scale, showing an image of a man burning in Hell. The image was produced by light from a lamp which travelled down the lens and through one of the movable slides to project the image onto the wall. These demonstrations eventually resulted in the birth of the magic lantern. Plate from Ars Magna Lucis Et Umbrae by Athanasius Kircher, (1646).
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