Understanding Focal Length Focal length refers to the distance from the optical center of a lens to the focal point where parallel light rays converge. In the context of surveillance cameras, it represents the distance between the lens optics and the CCD/CMOS sensor of the camera. For surveillance cameras, the focal length determines the image size, field of view, and depth of field. Field of View (FOV): It is the angle formed by the two furthest edges of the lens that encompass the observable area from the camera. Depth of Field: It refers to the range...

At WEILAILIFE Surveillance, we offer a wide range of advanced security cameras designed to provide effective detection capabilities. Here are several common types of detection methods utilized in our surveillance camera systems:   Motion Detection: Our security cameras are equipped with state-of-the-art motion detection technology. By analyzing the differences between frames, the cameras can detect significant changes and trigger an alert when the predefined alarm criteria are met. This sensitivity can be customized to suit specific needs, ensuring accurate motion detection.   PIR Detection: In addition to motion detection, some of our surveillance cameras incorporate Passive...

Can cameras function without Wi-Fi? Surveillance cameras can still function effectively even without Wi-Fi connectivity, although remote viewing capabilities would be limited. However, it's worth noting that some cameras offered by WEILAILIFE Surveillance can connect to both wireless networks and physical networks through Ethernet ports. For large-scale and long-distance surveillance deployments, using wired connections via network cables is often preferred to ensure stability and reliability.    Do cameras need constant Wi-Fi connection? The necessity of constant Wi-Fi connection depends on the type of camera being used. Surveillance cameras can be categorized into analog and network cameras....