Appearance is of good quality (made in China and not in Thailand or Japan). The engine is very noisy. Annoying for video. Although the development is done, which means the engine keeps running, stabilization is difficult. Less reactive compared to Nikkor 18-105 mm delivered with the D7100. Many game in the optical band, the image jumps when the focus is what is normal ??
I will make a return or exchange The +: 5 years warranty
