Camera problem ,Unity 5

I am trying to fix errors in one of the scripts I transfered from Unity 4 to Unity 5:

Here it is:

   public var FOVIN : float = 35;
   
   public var FOVSpeed : float = 5;
   
   public var Aim : boolean = false;
   
   public var DeffFOV : float;
   
   public var Cam : Camera;
  
function Start(){

DeffFOV = GetComponent.Camera.fieldOfView;

}

function Update () {


if( Input.GetMouseButtonDown(1)){ 

Aim = true;

}

if( Input.GetMouseButtonUp(1)){

Aim = false;

}

if( Aim){

GetComponent.Camera.fieldOfView = Mathf.Lerp( GetComponent.Camera.fieldOfView, FOVIN, FOVSpeed * Time.deltaTime);


}

if( !Aim){

GetComponent.Camera.fieldOfView = Mathf.Lerp( GetComponent.Camera.fieldOfView, DeffFOV, FOVSpeed * Time.deltaTime);

}
}

Its giving me problems with Camera part ,I am not sure I am using the “get component” right here ,I tryed the “GetComponent().fieldOfView” but it still gave errors ,this way I posted up in the code part lets me get into game mode but I get null reference error… Help pls

Nevermind , I forgot to add “.” after GetComponent , solved.