What is the standard for installation and monitoring of cameras?
3.6 mm lens is 67.4 degrees from 15 m 6 mm lens is 42.3 degree distance is 20 meters 8 mm lens is 32.6 degrees is 25 meters 12 mm lens is 22.1 degree distance is 40 meters distance is 16 mm lens is 17.1 degrees 60 meters.
Generally, 3.6mm 6MM 8MM 12MM 16MM is the most commonly used Angle and distance to be inversely proportional to the Angle of the closer
The outdoor height is four to five meters and can be adjusted for more than three meters according to the time
