4mm surveillance camera, can illuminate a few meters distance, lens front illuminate range is wide, right?
4mm surveillance camera, infrared sensor 10 meters distance;
If the 4mm is a few tens of meters, the picture is very full, but the picture is very small.
The scope of the front of the lens is wide, right, about 60 degrees.
The larger the lens, the farther the infrared distance you can see at night, and the image is magnified.
