how to change size of camera in unity code example

Example 1: how to edit Camera.size property unity

//To edit the .size property in a orthographic camera you can use the 
//'orthographicSize' propery, like this

public Camera CameraObject;

private void Start()
    {
  		//Sets size
        CameraObject.orthographicSize = 3;
    }

Example 2: unity change camera scale

//change camera zoom
Camera.main.orthographicSize = value