Questions on lowering

New to the Ford Focus scene and was thinking about lowering the car, not too much, using springs only. Since the car has Mc Pherson struts up front, I assume that lowering will decrease my front camber (less negative) due to the lowering, correct? I also the rear will gain more negative camber due to the double wishbone setup. If you drop the car on H&R springs can anyone advise what the drop might be and the result camber?

Is there anyway to adjust in more negative front camber, should i need it?