Share
A 2,8mm camera and a 4,0mm camera refer to the focal length of the camera's lens. The focal length is the distance between the center of the lens and the point where light rays converge to produce a sharp image.
A 2,8mm camera has a shorter focal length than a 4,0mm camera. This means that a 2,8mm camera can capture a wider angle of view than a 4,0mm camera. In other words, a 2,8mm camera can capture more of the environment than a 4,0mm camera.
A 4,0mm camera, on the other hand, has a longer focal length and can therefore magnify closer objects than a 2,8mm camera. This means that a 4,0mm camera may be more suitable for situations where details matter, such as capturing faces or number plates from a distance.
It is important to note that the choice between a 2,8mm camera and a 4,0mm camera depends on the specific application and intended use. It may be that for one situation a 2,8 mm camera is the best choice, while for another situation a 4,0 mm camera is preferable.