![]() ![]() I quickly sold it since landscape photos at the wide end wouldn't allow me to use apertures like f/11. If I remember, it was perfectly fine when it was above 18mm. ![]() The only problem I encountered with it was it one day gave me an error when I try to adjust the aperture past 5.6 at 12mm. AF and MF switching works perfect, different, but suck it up and adjust to it. The image quality was also good enough for me, but I think it could be a bit sharper, never really complained about it. The zoom range is the most useful, unlike the Tamron 11-18mm or Tokina 11-16mm (if you don't need the fast aperture). I adjusted to it, and never had a problem with it. The build quality of this lens is that of a TANK! Feels solid, but feels like it outweighs an entry-level body. I used this lens on a Canon 500D/T1i body. My lens crapped out on me, slow aperture F4 All in all, a great little lens, nicely compact thanks to its reduced image circle, well built, and optically much better than its modest price would lead you to expect. It delivers excellent performance wide open across most of its range, and its troubles at 24mm are easily corrected by stopping down. We found this lens to be a very pleasant surprise, particularly given its relatively modest price point. Geometric distortion is probably this lens' weakest point, but even there it's no worse than one might expect, reaching a maximum of roughly 0.75% barrel distortion at 12mm, decreasing to about 0.4% at 15mm, and dropping to almost zero at 24mm. Performance at f/5.6 at all longer focal lengths tested was 1/10 stop or better. Exposure uniformity is quite good, particular for such a wide-angle lens, with a worst case vignetting of 1/2 stop at 12mm wide open, dropping to 1/4 stop at f/5.6. Its performance suffers somewhat at the 24mm "tele" end of its range, but stopping down to f/8 cleans up the problems there quite well.Ĭhromatic aberration is on the high side at maximum wide angle, decreasing steadly to moderate to low levels at 24mm. From 12-20mm, it shows just excellent sharpness across the frame, even when wide open. This lens is Tokina's first foray into the world of reduced image circle optics, and it's an excellent effort.
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