CCTV Camera Eements

 All CCTV cameras include three basic elements:

·      Image sensor–Converts light (photons) into electronic signals;

·      Lens–Gathers light reflected from a subject and focuses the light on the image sensor; and

·      Image processing circuitry–Organizes, optimizes, and transmits video signals.

Image Sensor

Lens Types

The type of camera best suited for a CCTV system depends on the operational environment and how it will integrate into the system. The answers to the following questions may help determine the best camera type:

·      What is the desired image quality

Image Quality

What size is the desired field of view (FOV)?

·      How much lighting is available?

·      Will the camera be installed indoors or outdoors?

·      Will the video be monitored on a full time basis?

·      How will the video be transmitted?

·      Will the camera be exposed to extreme conditions?