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MANAGERS AND PROJECTIONISTS 247
in order that the rays which cause glare and harshness may be absorbed.
It will be observed that by this process the whole surface is not tinted. No matter how dense the tinting may be, fully fifty per cent of the surface is still pure white.
The foregoing is given space as an interesting description of a screen manufacturing process. We neither vouch for, or question its value.
Personally we believe the right place for softening the light is at its source. We believe the time will come when by proper chemicalization of the carbons the tone of the light will be softened and controlled, so that screen tinting will no longer be either necessary or advisable. One of the greatest disadvantages of screen tinting is found in the fact that a very large percentage of present day films are tinted, and the introduction of color in the screen surface cannot possibly be made to "fit" into a dozen or more tinting colors to advantage.
Heretofore we have not favored tinting because of the fact that the introduction of color into the screen surface automatically operated to reduce screen brilliancy, but light sources have become so very powerful, and lens systems so greatly improved, that a slight reduction in brilliancy caused by tinting may easily be compensated for, because almost unlimited light is available to the modern projectionist.
Experience has amply proven that the location of the screen at the end of the auditorium where the audience enters, with the projection room at the opposite, or rear end of the auditorium, is very bad practice indeed. Its effect is not good in any way, and when we consider the fact that the modern projection room is absolutely fireproof, and that if the port shutters be properly constructed and fused, and the projection room be properly ventilated, no evidence of any fire which may occur therein will be visible in the auditorium, we readily see that absolutely no element of safety is served by a front of the house screen location. Local authorities will do well to pay more attention to the proper construction of the projection room, the proper construction of its port fire shutters, the proper location of the fuses controlling the port fire shutters, and the proper ventilation of the projection room, instead of evolving such utterly useless, not to say foolish schemes as placing the screen at the entrance end of the auditorium.
LOCATION OF SCREEN ON STAGE.— Where the screen is located on a stage, and the theatre is used for motion pictures only, the screen should in any event be located far enough back so that there will be a minimum distance of 20