I had some trepidation that amount tele 800mm less than 200 on my Sony NEX 7 (a APSC it a 1200 mm!). A tune very precise manual focus is required (of the order of mm of the ring rotation) and then the expansion of the NEX focus to help proved very useful. And this was also an opportunity to highlight my old tripod indispensable here. With the development made, superb images!. I guess with a target costing 30 times more images should be better, but the value for money of this 800mm is indisputable. If a precise manual focus does not scare you and you have a tripod, so do not hesitate!
