Film Cameras
Although video cameras can now be made to record at varying speeds it is usual to employ film cameras for professional high and low speed requirements.
Many effects benefit from being slowed down or speeded up. For example, if a man falls from a roof top the action appears more effective if his fall occupies more time than it would at normal speed. This also applies to some explosions which become apparently more powerful when slowed down. Alternatively, some sequences benefit from being speeded up, such as the action of a gunslinger going for his Colt. Automobile crashes are nearly always enhanced by this technique when the action is in close up. In long-shot when they career over cliff-tops, they need to be slowed down of course. ...
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