How do I adapt Brackey's Multiple Target Camera for a 2D game?

Questions & Answers
1

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

[RequireComponent(typeof(Camera))]
public class MultipleTargetCamera : MonoBehaviour
{
    public List<Transform> targets;

    public Vector3 offset;
    public float smoothTime = .5f;

    public float maxZoom = 40f;
    public float minZoom = 10f;
    public float zoomLimiter = 50f;

    private Vector3 velocity;
    private Camera cam;

    void Start()
    {
        cam = GetComponent<Camera>();
    }

    void LateUpdate()
    {
        if (targets.Count == 0)
            return;

        Move();
        Zoom();
    }

    void Zoom()
    {
        float newZoom = Mathf.Lerp(maxZoom, minZoom, GetGreatestDistance() / zoomLimiter);
        cam.fieldOfView = Mathf.Lerp(cam.fieldOfView, newZoom, Time.deltaTime);
    }

    void Move()
    {
        Vector3 centerPoint = GetCenterPoint();

        Vector3 newPosition = centerPoint + offset;

        transform.position = Vector3.SmoothDamp(transform.position, newPosition, ref velocity, smoothTime);
    }

    float GetGreatestDistance()
    {
        var bounds = new Bounds(targets[0].position, Vector3.zero);
        for (int i = 0; i < targets.Count; i++)
        {
            bounds.Encapsulate(targets*.position);*

}

return bounds.size.x;
}

Vector3 GetCenterPoint()
{
if (targets.Count == 1)
{
return targets[0].position;
}

var bounds = new Bounds(targets[0].position, Vector3.zero);
for (int i = 0; i < targets.Count; i++)
{
bounds.Encapsulate(targets*.position);*
}

return bounds.center;
}
}
this is the script I was left with after watching and following along with Brackey’s “[Multiple Target Camera][1]” tutorial. however, the game he is making in the tutorial is 3D and my game is 2D. the field of view (used in the void Zoom() ) is not available on a 2D camera. so how should I work around this? is there code for zoom on a 2D camera? or do I have to use a 3D camera, and set the z to 0 on all the objects? please help! thanks!
_*[1]: MULTIPLE TARGET CAMERA in Unity - YouTube

2

Adjusting a 2D cameras size will zoom in and out like field of view on a 3D camera.

   void Zoom()
    {
        float newZoom = Mathf.Lerp(maxZoom, minZoom, GetGreatestDistance() / zoomLimiter);
        cam.orthographicSize = Mathf.Lerp(cam.orthographicSize, newZoom, Time.deltaTime);
    }
3

But how can I make the pixels more crisp.