I've been looking at bird photos posted on Facebook and am amazed at how crisp and detailed they are. I asked a friend of mine what lense she was shooting to get these shots and she said a Canon version 80-400 mm, so I bought the Nikon version AF-S 80-400 mm (used-couldn't justify the new price). I tried it a few time and while some pictures appear OK, when I try to crop they start looking fuzzy around the edges. Is it me (not quite in focus, vibration, etc) or does this camera not support that much zoom? I've attached one example...