For Friday the 13th Part III (1982), the first major 3D release to use the Depix system, Paramount Pictures shipped out full 3D kits to 700 theatres nationwide. The kits included: a 3D lens (1), mirror box attachment (2, 3, 4), aperture plates, 3D test strip (5), and instructions (6, 7). Inside the 3D lens attachment consisted of mirrors that would separate the left and right eye images (seen below in images #3 and #5 as top and bottom), and project them out on screen as a single image.