There really isn't much to say, it's already been described in detail in the other reviews. Super sharp, great value for money, a bit difficult to focus, but it doesn't bother me much, since I use the good piece in landscape photography anyway, where the focus ring almost always remains at "infinity". On an APS-C camera (Canon EOS 600D), the image distortion is within limits and can be quickly corrected with two clicks in Lightroom. I'm completely satisfied, unfortunately the weather isn't cooperating at the moment... :) UPDATE: I was now able to test the lens on an EOS 6D. Sharpness is still good, but not at the edges, is also related to image distortion, the full format makes a difference in terms of focal length, and vignetting has also increased significantly compared to APS-C. A lot can be ironed out with Lightroom, digital photography just doesn't work without post-processing and the lens isn't designed for snapshots anyway. Be that as it may - I stand by my recommendation, even if some of the "professional photographers" have expressed themselves very negatively - if you are looking for laboratory quality, you are in the wrong price range here. PS: The outdoor pictures are HDR's composed of 3-5 photos, with minimal (standard) sharpening in Lightroom.