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After Exposure— What?
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After the positive film has been run through this machine, it is wound on flat, square reels and is sent to the developing room, where it is immersed in the developer, washed, and then put in a fixing bath. The tanks which are used for this purpose are shown in an accompanying illustration. If the film is to be tinted it is placed for a short time in a similar tank containing the color — red, sepia, blue, or green, as may be desired.
The film is then sent to the drying room, where it is taken of! the reel and wound on one of the large cylindrical drying drums, such as is shown on the preceding page. These drums are continually in motion to prevent settling of water on the film which would afterward show up in the form of spots. It takes about twenty minutes to dry a film.
Throughout the plant where the raw stock is handled
and in the drying room the temperature is always kept at the same degree by an air-conditioning plant situated on the roof of the building and operating through the floors, which are hollow. The air is drawn in through an aperture by a fan, passing through a spray which washes it, then over pipes w h i c h may
In these tanks the jilms are developed, washed, and fixed.
A polishing machine removes all imperfections.
inches of film can be cut from a motion picture without making a noticeable change in the picture when it is projected on the screen.
After the film has been thoroughly inspected, and pieced together, with the titles inserted in their proper places, it is wound on reels, ready at last for shipment. All of this work is done, not on one print of each film — but on every print ; and since there are usually one hundred prints made of each picture, five hundred thousand feet of film must pass through all of these processes for every separate picture play.
Each week three million feet of film are used in the Famous Players-Lasky Eastern laboratory alone. This is, of course, the largest laboratory in the East — but the figure suggests the tremendous amount of film used.
A fter the final inspection, the film is pieced together, ready for shipment.
contain steam or ice water, and through an aperture which may contain ice, all according to the original temperature of the air, whether it is necessary to lower or raise it. This same fan propels the air through the hollow floor into the room where it circulates and is withdrawn by another fan providing a suction. The temperature is regulated automatically by a thermostadt and placed in even room, and is connected to a bell. Should any change occur this thermostadt automatically rings the bell.
When the film has been thoroughly dried, it is removed from the drum in big baskets and sent to the cutting room, where it is assembled. Each reel is put through a polishing machine which removes all imperfections, and then it is sent to the inspection room. There it is shown in miniature, bv means of specially built projection machines. These machines throw a picture about a foot square on the wall, and are so constructed that if an imperfection is noticed as the reel progresses, the operator can stop the machine immediately and remove that part of the film. Six