MONITORS
Another important and often overlooked part of a CCTV system is the monitor. Ultimately the picture taken by the camera and the lens is displayed on the monitor. The monitor’s performance and adjustment will have an affect on the picture seen by the system operator.
In the same way that cameras, being analogue devices, have adjustments that enable the best picture quality to be obtained, so monitors, also being analogue devices, have settings and adjustments that enable the best picture to be displayed. If the controls on the monitor are not correctly set then, similarly, the money spent on expensive high performance cameras, lenses and control equipment will be a waste because the picture displayed on the monitor will not co justice to the rest of the system. Consequently, it is vital to understand the principles of the normal monitor controls, their effect on picture quality and the correct way to set the controls properly.
Monitors are available in different screen sizes. The reason for this is that the size of the monitor depends on the viewing distance. If the incorrect size or position of a monitor is used then at best the monitor will be awkward and unpleasant to use; at worst the picture will be too small to differentiate detail or so large that the picture appears grainy and low quality.
