The image quality is really great! Even at full aperture (2.8) is obtained over the entire focal length range good results, slightly dimmed it's perfect. The optical performance is also at short distances (~ 2 meters) very well.
Overall, the images are beautiful contrast and sharp, sloping slightly towards the edge. The vignetting (vignetting) is visible at maximum aperture, but not annoying.
The stabilizer works very well, whether he really creates 4 stops I can not say, but there are possible shots that would not go out of hand without stability. The stabilizer is switched off and has 2 levels, one normal and one for horizontal Mitzieher.
Very I also like that the zooming ring is now nice and wide front of the lens. Thus it can be prima operate while having the lens are securely in your hand. But the focus ring is further back, to I do not need, since the AF works perfectly.
Autofocus is fast, silently and accurately. No front or back focus available. When Full-time AF (C-AF), the focus tracking occurs quite quickly and safely.
Previously I had the Sigma 70-200 DG Macro HSM II, which is considerably cheaper, but also does not reach the quality. The stabilization, zoom ring, AF and the imaging performance speak clearly to the rated this lens.
The processing makes a very good impression, the surface is comfortable to hold, zoom and AF ring run soft and uniform. The stabilization switch is a little fiddly, in a limited space it has 3 levels where you can easily pushes away times on the average. You have there with a little feeling slide the switch, then it works well. The weight is quite high, but as an objective can not build with 300 grams of weight one, performance requires weight ...
The lens hood is quite large, with it, the objective is pretty long and conspicuous. Looks professional, but is not just more discreetly. I use the panel anyway, as protection against stray light and as protection for the front lens, since I do not use protection filters.
The delivery of Amazon was carried out as desired overnight, as always perfect!
Conclusion: Absolute buy recommendation for this lens.
