Have Sony had SAL16105 compared to Sony SAL 1680Z, both as a warehouse deals. When SAL16105 the longer focal length does irritates me. Unfortunately, the optical power of my copy could not convince me compared to 1680Z. With the same aperture and setting the focus in the border area could be seen weaker. As with my 1680Z also had this Tubusspiel 16105, which appeared even slightly stronger. In principle, a great lens, unfortunately my copy was not as convincing as some other specimens according to various reviews may well be the Internet. Therefore, it has gone back and the 1680Z has become my standard lens.
