I took a photo of my white Hardenbergia yesterday and also had a problem getting the flowers in focus. Not the first time I have had this problem and I know a "bad workman always blames his tools" but I put it down to using a very amateur camera. I presume it is the same species, though how you tell the Hardenbergia species apart I don't know. I wonder how the flowers will fare with their current thick blanket of snow and the way below 0°C temperatures predicted for tonight and tomorrow night?