Friday, April 27, 2012

Cinematography Technology

        The moving pictures of cinema are based on the persistence of human vision. In fact, pictures do not move but still pictures appear on the screen one after the other. If we are looking at an object, then even after removing the object, its mage persists in our eyes for about 1/30 of a second and it gives an impression on that the object is there before our eyes. When pictures are shown very fast, one after the other on the screen, our mind is under the misapprehension that the pictures are moving. The second picture comes into the brain before the mental picture of the first is vanished. Then after a fraction of a second, a new picture appears which is lightly different from the previous one. In this way, the process continues and we get an illusion of moving pictures. The cinema pictures are shown at a speed of 24 scenes per second.

          In a cinema film, we have a long strip of thousands of still pictures, which is wound around a spool. The spool is mounted on a projector. The projector shows every picture or frame on a screen. Every second, 24 frames or pictures are projected on the screen so that the scene looks alive. Images on the film are recorded by a movie camera. This camera works like a still camera, the only difference is that it takes 24 pictures per second on the film. On one side of the film, sound signals are recorded. In the positive print of the film, sound and picture are both synchronized. This is called synchronization.

          The first cinema or movie was made by Thomas Alva Edison. This instrument was called kinetoscope, in which moving pictures were seen through a small hole.

          The credit of showing cinema film goes to the Lumiere brother’s of France. They made the first cinema projector by which film could be shown to a large number of audiences at a time.

          In March 1895, they showed their first short film with the help of a camera and projector in their factory. The world’s first cinema hall was built in France. Posters were pasted on the walls of the city on which photographs of the Lumiere brothers were printed and Lumiere’s Cinema’ was written in bold letters.

          Cinema was started in 1895 and for 34 years silent films were made. The fist talkie was made by the Warner brothers of America in 1927. The name of the film was The Jazz Singer. In the year 1930, colored films appeared. After that, cinema developed very fast. The side screen cinemascope films were made in the middle of this century. Today, we can see real scenes due to the techniques like Cinerama and technirama.
Kinetoscope

Cinema Projector
Lumiere Brothers

EVERGREEN POSTS