Summary: I am a Nikon shooter and have a lot of there equipment....Tokina is one of those hidden bargains in the third party lens makers.. If you have not tried a Tokina lens you are paying to much for the name with those other guys...
Tokina 20-35mm f/2.8 AT-X 235 AF PRO review by HighSierra
30 June 2010
Summary: Using this lens on my Nikon D700, I find it to be an excellent, if oft overlooked, zoom lens. While the frame is a bit soft at the edges at f/2.8, it sharpens up nicely across the board with stopping down. CA is ever-present across the frame, but easily removed either in-camera or in post.
Pros: Sharpness, contrast, great MF feel, fast aperture
Cons: High, but correctable CA, long minimum focus distance
Conclusion: Lens seems sharp to me. If I missed a focus at my sons basketball game I am certain it was due to my less than stellar skills. When shooting F2.8 the margin of error is not great. I would check it a few days later by using a tree to see if there was a focusing error.
Pros: Seems sharp to me. Lens does not extend when zoomed which i like.
Conclusion: This little pearl is a very fine product and i find it equal or better than the Canon 17-40 L with super good colours and contrast,its perfect on a Canon 5D and the new FF from Nikon the D3 and alike.
Pros: This is an awesome good and sharp lens and very overseen,its on par or better than many L or ED glass from other manufacturers i think the pic you get from this Tokina is up in the high end class for low money.Hey its F2,8?
Cons: No hsm/usm money..no weathersealing...hrumph..
Conclusion: I bought this for a pretty good price used in the UK as finances did not permit me to go for a wider lens like the Sigma 10-22mm (which I had a look at and was very impressed with). Bang for the buck - could not recommend it enough.
Pros: Great image quality; useable zoom field (good for landscapes and cityscapes just bordering on a wide angle)
Cons: Good grief this is built like a battleship and weighs the same!
Conclusion: Fantastic lens if you get one used. Great build quality like all Tokina lenses. Could use an upgrade on the motor, but then again it is a WA zoom. Not really going to be tracking birds and such with it. Color and contrast are good with no noticeable flaring or CA.
Pros: Build quality.
Cons: not as fast focusing as Canon. A little noisy
Conclusion: This lense is one of the better zooms for dslr's. It starts at f2.8, is sharp at f4 and beyound and it has canonlike good colors. The range from 20 to 35 is ideal for 1DMKII or FF, it feels pretty good in Your hands, rocksolid built.