In 1929, future special effects pioneer Eiji Tsuburaya constructed a smaller replica of Griffith's wooden camera crane without blueprints or manuals.
These devices allow setting an arbitrary trajectory of the camera, eliminating the characteristic jib crane radial displacement that comes with traditional spanning shots.
To improve usability and repeatability of movement of the crane in different takes, the axis of rotation arrows are provided with limbs and a pointer.
In modern films robotic cranes allow use of multiple actuators for high-accuracy repeated movement of the camera in trick photography.
The major supplier of cranes in the cinema of the United States throughout the 1940s, 1950s, and 1960s was the Chapman Company (later Chapman-Leonard of North Hollywood), supplanted by dozens of similar manufacturers around the world.
[2] During the last few years, camera cranes have been miniaturized and costs have dropped so dramatically that most aspiring film makers have access to these tools.
Manufacturers of camera cranes include ABC-Products, Cambo, Filmotechnic, Polecam, Panther and Matthews Studio Equipment, Sevenoak, and Newton Nordic.