Different specifications of the security camera, can see the distance width is not the same, for example, 3.6 ~ 6mm specifications of the infrared camera, can see the range within 5m.
3.6~6mm specifications of infrared cameras, can see the range within 5m, 6mm or more specifications of the camera belongs to the narrow angle lens, can see the range of about 3m.
If it is a high-speed laser PTZ all-in-one camera, the range can be seen in about 10m. Surveillance cameras are very similar to DSLR cameras in terms of application, usually the smaller the millimeter, the wider the picture that can be captured instead.
Introduction of camera:
Camera (CAMERA or WEBCAM), also known as computer camera, computer eye, electronic eye, etc., is a kind of video input device, is widely used in video conferencing, telemedicine and real-time monitoring.
Ordinary people can also talk and communicate with each other via webcam on the Internet with images and sound. In addition, people can also use it for a variety of popular digital imaging, audio and video processing.