Type of camera lens with two focal lengths, typically seen in an x-y mm format, which notates that the lens may adjusted so the camera’s field of view can be altered to suit the environment. Though this allows a camera’s “zoom” to be adjusted, it does not occur automatically or with the push of a button. The camera’s focal length is altered locally to provide a wider field of view with a nearer target area or a more narrow field a view with a further target area.