Have the objective recently and am getting to first test shots already excited. The image quality is actually way better than the cheaper telephoto zoom (eg. 18-200 EFS IS). I have received a properly-aligned model which sometimes is yes Canon a gamble. The images are sharp crack, fringing absent even at maximum aperture. In various reviews described vignetting at open aperture is with me so far not seen the images are consistently well exposed. Natural freehand Photos require good light or high ISO values, because without image stabilizer must be the weight including camera (EOS 60D) Once tame. Processing top because everything is quiet and precise as it should and gives the photographer control that he needs. Price-performance is also great.
