Couleurs mécaniques presents, in the order they were filmed, six different viewpoints of a merry-go-round. In each case the focus is adjusted so as to select, isolate and inscribe parts of the filmed scene onto the film strip in a way that allows elements of color in movement to be recombined in a particular manner during the projection of the film. Couleur mécaniques shares similar concerns to those found in Roulement, rouerie, aubage.