Surveillance Cameras

Surveillance cameras have the task of capturing images by transforming the visible scene observed by a Camera Lens and projected upon a Camera Sensor, converting it into an electric digital signal to be further processed and transmitted.

For an informed decisionwhen choosing from Surveillance-cameras the equipment for your CCTV video system you have to take into account a few considerations:

• The task that Surveillance-cameras systems are intended to perform (detection, assessment, alarm, identification, documentation).
• The overall characteristics of the system you specify according to the actual application (space to observe, details, sensitivity).
• The light available at the selected location, its amount and variability.
• The environment, exposed or protected.
• Location, where the actual camera will be installed.
• The cost.

To consider the alternatives of the different types of Surveillance-cameras, you should examine the characteristics as follows:

1. Color vs. Black & White
2. Outdoor vs. Indoor environment
3. Fixed lens vs. varifocal lens
4. Dome vs. Bullet
5. Infrared vs. light amplification
6. Fixed vs. PTZ