I forgot to mention that a lot depends on the size of the AF target area ... with the Panasonic cameras this is small or can be very small depending on the model [ G3 is best I think, have not met the GH3 or G5 as yet ] with a very small area which helps to select the point one wants to be the point of focus as one might do with a ground glass or rangefinder system. So I give a cautious yes to AF depending on the camera. I only MF when I have to with a resultant lack of skill