I just got it yesterday. Here are a few test shots. I have the Nikon 50mm f1.8 and also a Tamron Adaptall 80-210 lens. It's a heavy beast. Is this lens good at all? i want to try it at the next airshow. Here are some photos. They aren't particularly that great but here are 2: blue jay in motion I was doing some zooming on the first picture and discovered this: It seems to be a bit of abberation There is also some weird abberation (i think that's what it is) on the whiskers. Is there anything i can do about this? The lens has a clear 0 UV filter on it. Nothing else.