In film and video production split screen, is the visible division of the screen traditionally half, in, also but in several. Simultaneous images rupturing the, illusion that the screen 's frame is a seamless view, of reality similar to that of the. Human eye. There may or may not be an explicit borderline. Until the arrival of digital technology in the, early 1990s a. Split screen was accomplished by using an optical printer to combine two or more actions filmed separately by copying them. Onto the same negative called the, composite.In filmmaking split screen is also a technique that allows one actor to appear twice in a scene. The simplest technique. Is to lock down the camera and shoot the, scene twice with one "version" of the actor appearing on the left side and the,, Other on the right side. The seam between the two splits is intended to, be invisible making the duplication seem realistic.
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