In this film, Nauman applies black makeup to his testicles. The action was recorded with an industrial high-speed camera capable of shooting between one thousand and four thousand frames per second.

[Source: Electronic Arts Intermix Website]

At the opposite end of the gallery is Bruce Nauman’s BLACK BALLS (1969), a video projection taken from a film of the artist smearing black paint on his testicles. Filmed at close range and framed always by the same square of the screen, the film shows an excruciatingly slow, simple action measured against a ticking sound in the background of the high-speed film camera.

[Source: MoMA PS1]