Smooth Camera Angle Scroll

So I’m working on a camera script that will work similar to Diablo 3’s camera that will zoom in on the player and change the camera angle as the scroll wheel moves forward - and do this smoothly. Just working with the angle for now I seem to be running into a problem. When I start up, I seem to be getting the desired result, the scrolling is smooth, but upon each scroll, it seems to get less smooth - like something in the script is compounding it. It’s probably something obvious, I’d just like another set of eyes if possible. Thanks!

using UnityEngine;
using System.Collections;

public class CameraScroll : MonoBehaviour {
	
	
	public float zoomSpeed = 5;
	public float minAngle = 0;
	public float maxAngle = 180;
	private float newAngle;
	public float zoomUpdateSpeed = 10;
	private float angle;

	// Use this for initialization
	void Start () {
	
		newAngle = transform.localEulerAngles.x;
	}
	
	// Update is called once per frame
	void Update () {
	
		newAngle -= Input.GetAxis ("Mouse ScrollWheel") * zoomSpeed;
		newAngle = Mathf.Clamp (newAngle, minAngle, maxAngle);
		
		transform.localEulerAngles = new Vector3 (Mathf.LerpAngle(transform.localEulerAngles.x, newAngle, Time.time * zoomUpdateSpeed),0,0);
		
		}
}

Ugh… ok figured out the problem I was running into… Time.time → Time.deltaTime …copied the equation from the LerpAngle script ref…so Time.time increases each frame which is why the smoothing factor decreased as time went on… feel dumb.