Camera Controls
The controls and facilities you need on a camera really depend on how you are going to use it. For instance, while a news cameraman may welcome automatic circuits that prevent the picture from being accidentally over- or underexposed, in the studio, this problem is more effectively handled by the shader/video control operator at a central control unit.
Camera adjustments
There are several ways In which you can control the camera’s picture:
• Altering the zoom’s lens angle – By turning a ring on the lens barrel; or a control on a pan bar; or switches (‘shot box’, rocker switch). This will vary the lens’ focal length, and adjust:
How much of the scene appears in the shot (coverage/field of view).
The apparent relative proportions/sizes ...
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