Summary: I thought the first lens I bought I had broke. Lens #1 jammed at 70mm. It lost its focusing ability with this jam. I thought it was a fluke and decided that I would just repurchase the lens because I liked it so much. Lens #2 has now jammed at YOU guessed it 70mm. I take care of my lenses and cameras carefully and in fact my camera bag itself costs over 100.00, its a good bag with lots of protection in it. Its taken care of, when its not used it gets put away.
Summary: I must have received a bad copy as this thing sounded like one of the Transformers while trying desperately to auto focus on something. So loud it was embarrassing! It was also extremely cheap feeling and It was only sharp at F8. A real JUNKER!!!
Summary: I am beyond disappointed with this lens. After borrowing a friends Canon 24-70, this is like a ham sandwich compared to a steak dinner! I did all of my research before commiting to this lens. Including reading all of the reviews on this site. When the lens came in the first thing that I noticed is that the lens felt cheap. Not sturdy like the canon. No internal zoom. Plastic casing, and smaller size. Then I saw that the turning zoom is opposite from what I am used to.
Summary: *******PLEASE READ UPDATES AT THE BOTTOM OF THIS REVIEW TO LEARN WHAT HAS HAPPENED WITH MY LENS AT TAMRON*********** I bought this lens after reading so many positive reviews from Amazon customers. However, I did note on a multitude of websites such as slrgear.com, dpreview, and photozone.de that these lenses have quality control issues. These websites all had to use multiple lenses from Tamron before receiving one that worked good enough to test.
Summary: I waited 6 months from the first time I used this lens to put my review here. I was about to give it a 5 star after a few weeks of using it because it was focusing real fast except for extremely low light condition and the images have been clear. Also focus has always been right on the spot, no back/front focusing issues. The bokeh is wonderful but then I started experiencing F-- error on my D90 just like what some reviewers have said.
Summary: I went through two of these to avoid spending the $1400 on the Canon 24-70. The first one had zoom issues- you had to turn it VERY hard to get the barrel to extend. The second copy seemed OK, until I took it to my daughter's Kindergarten graduation and snapped about 200 photos. When I got home my wife looked at them and asked why they were all kind of blurry. And it was true. They were not terrible, but almost every picture was very soft.
Summary: I was very excited to get this new lens, however that changed to disappointment. I used it for about 2 weeks, and the focus was never quite right. Hopefully it is just a fluke, but I returned it and did not ask for a replacement. Hopefully sony will come out with more mid-range priced lenses.
another victim of the Tamron autofocus lockup lenses
16 March 2010
Summary: I spent considerable time reading reviews on this lens before I bought it. Most, including professional, were positive. I use it on my D5000. For some weeks it performed very well and I thought I had done a good deal. Then it begun to lock up the autofocus. I see in some forums and other reviews on Amazon that this has happened to many others. Unfortunately, I did not see those reviews in time before I bought the lens.
Summary: I'm giving this one star because it is useless on a 5D Mk II. This may be a good lens for other bodies and cropped sensors (although not wide enough for cropped sensor cameras for my taste). I bought this for my Canon 5D Mk II. It vignetted very noticeably at all focal lengths indoors but pointed at the sky outdoors seemed OK. Took it back to the camera store, and they put another copy of the lens on a different 5D Mk II and it vignetted too. It was very noticeable.