The ideal complement for my NX1; Lens and camera are perfectly matched. The bright Premium lens is processed very valuable and so it is easy to handle, fast, sure grip. The size and weight have irritated me at first - I did come from the smaller 16-50mm AZ-Zoom, but soon I realized that lens and NX1 very well together and the relatively large lens not only in the quality / goodness but also within the scope is the right place for the NX1.