Unity - Camera Zoom With mouse

CameraZoom

 var ZoomAmount : float = 0; //With Positive and negative values
 var MaxToClamp : float = 10;
 var ROTSpeed : float = 10;
 
 function Update() {
     ZoomAmount += Input.GetAxis("Mouse ScrollWheel");
     ZoomAmount = Mathf.Clamp(ZoomAmount, -MaxToClamp, MaxToClamp);
     var translate = Mathf.Min(Mathf.Abs(Input.GetAxis("Mouse ScrollWheel")), MaxToClamp - Mathf.Abs(ZoomAmount));
     gameObject.transform.Translate(0,0,translate * ROTSpeed * Mathf.Sign(Input.GetAxis("Mouse ScrollWheel")));
 }