A trend within CCTV is to use Surveillance Domes in place of traditional Pan & Tilt Head functional cameras. One of the major benefits of dome cameras is that you cannot see which way the camera is pointing and therefore are appropriate for ‘covert’ surveillance.

Dome cameras come complete with zoom lenses on fast pan/tilt mechanisms. They are generally much easier and quicker to install than conventional Pan/Tilt/Zoom type functional cameras.

Typical pan speeds are high, one complete revolution or more per second. Most can continuously rotate in either direction and come equipped with full preset positioning capabilities, comprehensive patrol and auto panning functions. Their fast speed is useful when combined with alarm devices, which can send the camera to a preset view almost immediately upon receipt of alarm activation.

High Speed Domes use high-resolution camera modules with a variety of zoom lenses; 18:1 and 22:1 are typical. Outdoor models can come equipped with filter-switching Day-Night camera modules.

The domes come in a variety of forms, some suitable for indoor use only and others in full weatherproof environmental housings complete with heaters and blowers for outdoor use.

Note that it is not currently possible to fix infrared or other lighting to the dome as it is a conventional PTZ camera.

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