Interesting shot. The extreme corner sharpness of the lens wide open outperforms the sensor introduced reduced resolution of 1000 ISO. So not good to test lens performance, but indeed excellent to show real world application. And the fact that this lens does outperform the sensor at 1000 ISO even in extreme corners is still impressing me. Also good bokeh in the transition area also considering it is a difficult subject. I am a low light freak shooting many of my pics at f/2 and I can see nothing where this lens is worse than my beloved prime. Again, truly impressive.