Summary: I was very disappointed when the lens showed up, it was a reconditioned unit. There was signs of use, no box, lens hood or warranty paper work. The lens worked fine so I contacted Amazon and they gave me a partial refund of 20% so I keep the lens. Unfortunately it cost more to replace the hood than the discount offered but I needed the lens that weekend. All in all I'm not happy but ill live!!
Excerpt: I haven't owned many lenses but this is by far the worst. I returned it after 2 weeks, and I was stunned how bad it was. Throughout the range you get kit lens sharpness, and 135mm is mush. Distortion is apparent at 18mm and the midrange. Bokeh is harsh. The autofocus and the wr is a plus, but really this is a kit lens with a long end, and is worth around $200.
Excerpt: On the positive side of things, first I should mention is its build quality. I own DA* 16-50 and the build quality of this lens is comparable. It also looks at its place on the K-7 and balances it good. It is small, lightweight yet sturdy lens.
Excerpt: Bought this new in late Feb. 2011, After using it frequently this summer (my better half prefers the versatility and AF), I found myself giving up on this one, it's a nicely built lens and balances out well on the K-5, but the soft corners, and heavy barrel distortion, and vignetting, AND CA's... and and and. Eventually I found myself just taking this lens off when I go shooting and throwing on any of my other lenses.. even my broken Takumar-A 28-80 Macro is better IMHO.
Summary: Based on the other user's review, I think my copy is not a bad one. It is just what it is. CA is even visible at 25% of the actual image size. The center image quality is good, but the corners are really really soft, especially at wide end. I really love the range, but cannot live with the poor IQ.
Summary: I ordered this lens because I wanted to replace my kit lens. It was a toss up between this one and the Sigma 17-50mm, or Sigma 17-70mm. So I ordered this because of the Focal Range. 18-135mm. Well, It was not as good as I would had hoped for. Cons: The image is not as sharp as I would like. You can not really use the camera flash with this lens it will create a shadow on the bottom of your picture.
Excerpt: Объектив не однозначный. В принципе не плохой, но за свои деньги он не очень резкий, и довольно темный. До 100-110 мм в принципе нормально снимает, если больше, то резкость сильно падает. Жалко, что темный, а так не плохой...