Like gothic script in heavy metal, the fisheye album cover photo seems like a naturally occurring feature of certain psychedelic strains of music. But it has a history, as does the fisheye photograph itself. The Vox video above begins in 1906 with Johns Hopkins scientist and inventor Robert Wood, a somewhat eccentric professor of optical physics who wanted to duplicate the way fish see the world: “the circular picture,” he wrote, “would contain everything within an angle of 180 degrees in every direction, i.e. a complete hemisphere.” Rather than putting them to underwater use, later scientists employed Wood’s ideas in astronomical observation. Their next stop was the professional photography market: the first mass-produced fisheye lens, made by Nikon, cost $27,000 in 1957. From academic journals to the pages of Life magazine: mass media brought fisheye photography into popular culture. An affordable, consumer-grade lens in 1962 brought it within the reach of the masses. For t...