10. Factors Effecting Camera Sensitivity
Another key aspect of CCTV Systems is installing cameras that provide usable images in the required lighting conditions. This ranges in extreme from a brightly lit supermarket to a parking lot, lit only by the moon. Camera manufacturers normally provide minimum illumination specifications for their cameras in the best case scenario. Factors that effect the performance of CCTV camera include the following.
To summarise in many camera installations one actually requires external lighting in the vicinity of 10 ~ 40 lux to provide a usable colour picture from the camera.