My wife and I bought us the objective here on Amazon, and we are very satisfied. For a very reasonable price you get a lens with which you can make beautiful pictures. However, this objective should not be used in mode "Smart Auto", otherwise before problems with the blur in the background are (Hintergrunddefokussierung). I recommend the focus mode "Flexible Spot" in the menu item "AF" and the assignment "Metering Mode" for the softkey B (from firmware version 4). In this way, you get images that will amaze their sharpness on a 19 "monitor and a TV with 108 cm diagonal. Also the weight and the handling ago, the lens is a useful addition to the original objective. The focusing speed is fast enough, if one does not at would provide full telephoto a new subject into focus. Then it takes a few seconds before.
Who tears up an objective this price range because it does not provide the same sharpness and brilliance as an objective of the highest class, which costs many times over, is just stupid and has the relationship between price and performance not understand. In terms of build quality, a VW or Toyota did not keep up with a Rolls Royce, but also cost former only a fraction of the British marque.
