Kodak invented this film for World War II spy planes. Then it became art.

Kodak invented this film for World War II spy planes. Then it became art.

LSD was famously pioneered by the CIA and adopted by the hippie movement. But it wasn't the only psychedelic technology that made its way from the deep state to artsy subcultures. Infrared color photography, originally developed to help spy planes unmask enemy camouflage, has become a favorite of hobby photographers long after the surveillance method became obsolete. It's a beautiful example of a warlike technology being turned toward peaceful e…