Error: non-invocable member 'cameramanager.cameras' cannot be used like a method.

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Visual-Studio

macOS

errors

Unity

Full Error: Assets/Scripts/CameraManager.cs(89,9): error CS1955: Non-invocable member 'CameraManager.cameras' cannot be used like a method.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CameraManager : MonoBehaviour
{


    public Camera cameraSecurityRoom;
    public Camera camera1A;
    public Camera camera1B;
    public Camera camera1C;
    public Camera camera2A;
    public Camera camera2B;
    public Camera camera3;
    public Camera camera4A;
    public Camera camera4B;
    public Camera camera5;
    public Camera camera6;
    public Camera camera7;

    [SerializeField]
    protected Camera[] cameras;
    protected int currentCamera;

    void Awake()

    {

        cameras = new Camera[12];


        cameras[0] = cameraSecurityRoom;
        cameras[1] = camera1A;
        cameras[2] = camera1B;
        cameras[3] = camera1C;
        cameras[4] = camera2A;
        cameras[5] = camera2B;
        cameras[6] = camera3;
        cameras[7] = camera4A;
        cameras[8] = camera4B;
        cameras[9] = camera5;
        cameras[10] = camera6;
        cameras[11] = camera7;
        


    }



    // Start is called before the first frame update
    void Start()
    {
        
    }

    void incCamera()

    {


        cameras (currentCamera).enabled = false;

        currentCamera++;

        if(currentCamera >= cameras.Length){

            currentCamera = 0;
        }


        cameras (currentCamera).enabled = true;


    
    }


    void decCamera()

    {
        cameras (currentCamera).enabled = false;
        currentCamera--;

        if(currentCamera < 0){

            currentCamera = cameras.Length-1;
        }
        cameras (currentCamera).enabled = true;

    }

    // Update is called once per frame
    void Update()
    {
        
         if (Input.GetKeyUp(KeyCode.UpArrow))
        {
            incCamera();
        }
         if (Input.GetKeyUp(KeyCode.DownArrow))
        {
            decCamera();

        }


    }
}

What I have tried:

google it but i cant find anything useful