But now to the lens. How do I know it already from the DA * 60-250mm lens is processing it at a high level. I do not what I would have to complain about anyway. To adjust the ring Focussier sharpness goes smoothly, and you can tell very accurately when the minimum or maximum "strikes", for he has no fixed end position. But this is all my DA * lenses that. The focal ring is sluggish compared to the focus ring. I suspect the reason is that the lens increases in length, and despite seals somewhere has to take place an exchange of air through the volume increase / decrease. By the way, at my DA * 60-250mm same. Only the DA * 50-135mm has a very smooth zooming ring. But does not change the volume of the lens. Eben case is a lens hood with supplied that has a recess for the use of pole filters.
Already the first few times I had to find my copy, the 16-50mm * a really great lens is the DA. My copy is not really even at f 2.8 in the corners of focus. Since I have absolutely nothing to complain about at this objective. I can not quite understand why we read repeatedly that the lens at full aperture in the corners so poor. I for one can with the results of the DA * 16-50mm really live very well. With CA at the long end I have in my copy is not really big problems subsequently corrected, I have so far never. The autofocus of the DA * 16-50mm is not the fastest, but very quietly, my DA 16-85mm faster.
Conclusion:
To what extent is "good" and "bad" are of course I can not judge at this larger lens to scatter. I am * 16-50mm very pleased with my copy of the DA, and it is very much on my K30 or K50 as it is a really great lens. It's been almost an ever top lens. Normally, a zoom lens is always a compromise, I would like with my 16-50mm DA * of them but not actually speak. I find the lens class, and have no reason to complain.