Version: 2017.4
public static Camera[] allCameras ;



All cameras in the scene can be enabled or disabled. The allCameras value tells how many cameras are still enabled. If all the cameras are disabled then a value of zero will be returned.

using UnityEngine;

public class ExampleScript : MonoBehaviour { private int count;

void Start() { count = Camera.allCameras.Length; print("We've got " + count + " cameras"); } }