Main Camera toggle in Unity C# - toggles between two camera transforms

gistfile1.txt

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

public class CameraHandler : MonoBehaviour {
    // Represents the main camera
    GameObject mainCamera;
	// Update is called once per frame
	void Update () {
        if (Input.GetKeyDown(KeyCode.Space))
        {
            // Target your main camera
            mainCamera = GameObject.Find("Main Camera") as GameObject;

            // Conditionally handle position changing
            if (mainCamera.transform.position.z == 0)
            {
                mainCamera.transform.position = new Vector3(0, 3, -2);
                // optional rotation
                // mainCamera.tranform.rotation.x = -15;
            } else
            {
                mainCamera.transform.position = new Vector3(0, 0, 0);
            }
        }
	}
}