Here's another shot wide open at the tele end of the zoom. There's only a sliver of real sharpness around the green sprout near the middle of the image. In this case we get to see how the bokeh deals with blurring a more complex surface while including lots of darker areas to show some shadow detail.

Shot info: Nikon D600, ISO 100, 1/500 sec., f/4.5, -0.67 EV exposure compensation, lens at 85mm.

Download the full-resolution image here