Anyone else find this lens just makes everything look like sand at low shutter speeds? I'm using a 7D and maybe I got a bad (UZ) copy but I'm usually more disappointed with results than I am happy. I can shoot any other lens I own at 1/40 and get a good sharp image but this thing just wrecks 80% or more of them. I'm not convinced sending both the body and lens away for a tune will fix this.
most of what I shoot ends up being 200mm or further but even 100mm it's rather average.
Handheld at 1/100.
Augar buzzard by smandavia, on Flickr