I have an RZ PRo2 with just the standard lens (110) and would like some advice on the best lens to get for portraits. If possible, I would like to do some hand-held work, though maybe the standard lens is the limit for this, in terms of weight and balance? I use it occasionally hand-held at the moment, and it's O.K. in good light, in fact can yield great results but I can't get close to my subject without being intimidating. Any suggestions/advice?? Many thanks.