Hello, to comment immediately be premature insofar as to give effective notice should have a very good experience, since I have this objective for 1 month, I board not had the opportunity to test it in optimal conditions. Nevertheless to have handled and tested on some shots I have to admit it is beautiful, well built, very effective despite a heavy weight that requires the operator to use a monopod with ball joint to optimize the desired results. Shots fired at the day and night Vincennes racecourse suggest pleasant moments in the countryside in fine weather (with the sun). The image quality is present and first impressions are very beautiful. It is a gift to be if one wants to enjoy the unquestionable quality of this product for lovers of the beautiful image. (300 D + 18-200 vr nikon)