A New Motion Picture Camera Crane
E. H. Heyer, E. L. Fischer · Journal of the Society of Motion Picture Engineers · 1938
During the last fifteen years there has been considerable change in camera technic for motion picture production. The rather unnatural effect of cutting from long shots to close-ups has been avoided more and more by perambulating the camera from one position to another during the shot. In general, rolling tripods, camera dollies, and perambulating platforms are in use now for nearly all types of scenes. With more elaborate sets being designed every day, dialog and action becoming faster, more effective camera angles and pictorial effects being wanted, there was a need for more efficient perambulating apparatus to move camera and cameraman into the exact positions from which to take the most effective shots.