How a Field of Pins Became a Moving Image
A pinscreen turns tiny changes in surface height into changes in light and shade. The board is packed with pins that can slide in and out. When light strikes the pins from the side, their raised edges cast small shadows. A cluster of shadows reads as a dark patch; pins pushed closer to the board let more light reach the surface, creating a lighter one. Together, those minute marks can form an image with the soft, grainy look of charcoal.
The artists did not draw on top of a finished picture. They reshaped the picture itself, adjusting pins until the board held the desired arrangement of highlights and shadows. The apparatus was therefore both drawing surface and sculptural tool: its image had physical depth, even though the audience saw that depth mainly through the shadows it produced.
Why Seconds Could Take Months
Animation demanded a new pin arrangement for every frame. To make a figure move, an artist had to alter the existing image, preserving some contours while shifting others; even a small change could involve many individual pins. Then the board had to be lit and photographed. The next frame began with more adjustments to that same surface.
That process made the pinscreen slow and unforgiving compared with drawing a fresh image on paper. But it also gave the technique its distinctive strength: forms could emerge from darkness, soften at their edges, and change shape through subtle shifts in shadow. The million-pin board was not a store of ready-made pictures. It was a surface that had to be rebuilt, pin by pin, for each moment of motion.
