Summary: First, this is for the Nikon Mount. I think Tokina's Canon mount appears to be less "sharp" than the Nikon mount. This lens is tack sharp wide open. I also have the 16-28 Nikon mount. Did a side by side comparison at F4. I was surprised that the 17-35f4 is sharper!!! What a pleasant surprise. The colors are not as good as the 168 however. Note: my copy of 168 is a good copy and considered ultra sharp until this lens.
A practical review - this fills a much needed void in the wide-angle game.
Daniel Fukao, Amazon
13 June 2013
Summary: This review is based on practical application and it's ability to fit a specific need. Look elsewhere if you want a technical review of sharpness, light transmission, aberration, vignetting, blah blah blah. If you're looking at this lens, you're probably in the same position I was in not long ago and wrestling with the same tough decision. You have a full frame camera. You probably bought it not long ago.
Summary: I purchased this as there were mostly 5 star ratings and I was looking for a UWA lens for my D700. Since I had the fantastic Tokina 11-16 (original non-motor) for my D90, I thought this lens would be an excellent buy too. I was wrong. I got a few usable pictures from it but the CA was horrible and the corners, and not extreme corners, were mushy. they were horrible at F4, and stopped down to 5.6 or F8 was an improvement but still had some "mushiness" and blur.
Summary: I've always been a fan of Tokina. On my Nikon D 90 I had ATX11-16 2.8 and love it, now that I have a Nikon D600 I got this lens and it has quickly become one of my favorite Lenses. Very little distortion, very harp at al appitures except f4 but still vey good.
Summary: I purchased this as my new WA lens. However, it was not what I hoped for. PROS: Great range Constant aperture Great build quality Smooth operation Sharp as a tack (when in focus, see below). CONS: Somewhat softer at the long end, but not bad. AF operation what hit and miss on this copy (Front focus errors sometimes). I have had several Tokina lenses, so that was a surprise. Minor niggle: Zoom ring could be wider.
Summary: I upgraded to an FX Camera and needed to replace my Tokina 12-24 which I loved. The Tokina 17-35 is great for landscapes. You get the shots that others will miss and the pics are very sharp. I don't talk to techie so just know that your friends will go WOW when they see your pics you took with this lens.
Summary: I can't believe that a lens can be this horrifically soft. I used to rock the Tokina 11-16 EF-S on my Canon 7D and it was pretty good. Not the sharpest, but definitely passable for the price and ultra wide angle with minimal distortion. When I bought my 5D mark iii, I sold the Tokina 11-16 and bought this 17-35 to replace it (since the 5D is full format and not compatible with EF-S lenses).
Amazing quality wide angle lens at a very affordable price
3 November 2012
Summary: Excellent deal. Amazing wide angle coverage at 17 MM, that was good enough to cover Burj Khalifa (tallest building in the world)in landscape format just from the foot of the building. This was dream come true for me!