patrick j wrote in post #18447684
I'm thinking about getting a wide and zoom for a crop sensor camera. I own the 15-85, would like something that goes to around 10mm, plus I'm hoping to find something with less distortion down at the wide end. I've used the Tokina 11-16, very sharp, but so little range I was constantly swapping it off the camera. A few I'm considering - the new Tamron 10-24, Tokina 11-20, and the Canon 10-22. I wonder if anyone has experience with any of these, or something I haven't mentioned. Thanks.
I've had several crop-frame UWA zoom lenses. I tried the Canon 10-18. If aperture doesn't matter to you, this lens is very good, IQ-wise. I found it too slow (f/4.5-5.6) for me.
Before that I had the Canon 10-22. It is faster (f/3.5-4.5) and noticeably less vignetting. The 10-22 is also USM, so it focuses quickly. I'm not convinced that is necessary in UWA. The 10-22 does have a really nice zoom range, too.
My current crop-frame USA zoom lens is the Tokina 11-20 f/2.8. If you can get past the Tokina AF/MF clutch system, this lens is fantastic. I don't care about the clutch because I shoot auto-focus all the time. I got bored a few days ago and compared my 80D/11-20 combination to my 6D/17-40 combination. Generally speaking, both are really good setups. Overall, I prefer the 6D/17-40 setup. However, the 17-40 absolutely SUCKS in the extreme corners at 17mm, at any aperture. I shot the 11-20 at 11mm & f/2.8 and the corners looked way better than the 6D/17-40 at 17mm AT ANY APERTURE. Sorry, but I've already deleted my test shots.
I did plan on selling the 17-40. But in low-light the 6D/17-40 does a lot better at f/4 than the 80D/11-20 does at f/2.8. The new(er) 80D handles noise quite respectably for an apsc camera, but it can't compete with the 6D, even with a 1-stop aperture advantage.