CheckCameras.cs

using UnityEngine;
using NatCamU.Core;

public class CheckCameras : MonoBehaviour {

    void Start () {
        foreach (var camera in NatCam.Cameras) if (camera) {
            Debug.Log("Found a camera with facing: " + camera.Facing);
            return;
        }
        Debug.LogError("No cameras found");
    }
}