The third objective was very good.

I had the lens eagerly awaited and was mightily disappointed. I have no decent photo hinbekommen! As soon as I have anything added contrast, were in all !! To see extreme focal lengths fringing at the edges. Something usually occurs and then never so extreme only at long focal lengths, but here starting at 55mm. It does not matter whether I switch on the lens to compensate my 57s or not, the result is always the same. Also the focus pumped continuously back and forth. Now I'm waiting until a time until I get the lens in a camera store and I can test it in the store before. Still, I'm still interested in the lens.

Addendum on 15/05/2013
The first objective was definitely broken and the 2nd test in the shop was better but still not convincing. Now I have an ordered directly from Sony on the Internet, and the lens forms in the entire zoom range from very good. I feel that everything I've ordered directly from Sony, comes in better quality (which was previously often).

At first I was a bit skeptical because of the low initial aperture of 4.5. But the aperture of 4.5 runs through to 150mm focal length. This is a telephoto zoom lens has a pretty good value.
The image quality at maximum aperture at all focal lengths is good-very good.

I'd give 5stars if the SAM engine would be faster and quieter. For sports photography, I would not use the lens therefore.