Quote - Another method of using this procedure is placing an object in the scene where you want the focal point to be, choose a simple material, make that simple material completely transparent (invisible). Select that object to create your focal point in the scene.
Also try experimenting with resizing/disorting the shape of  the focal point object to change the focus in that area.

 

Yes, I was aware of that but I didn't know about the sizing of the object having any connection to the size of the focal point... thanks.