Canon 10-22 vs Sigma 10-20

[asnow]

I rented the Canon 10-22 lens for the weekend (in fact all my recent posts are with that lens). However it costs almost $1000. There is a similar Sigma lens 10-20 that is much cheaper, less that $600. Does anybody know how these two lenses compare. When I was taking the pictures I was was talking to somebody that had the Sigma lens and he said it was a little soft on the edges.

[aubintbay]

Hey asnow i've been thinking of a wide angle myself. I'm kinda stuck between the canon 10-22 and the tokina 116 pro dx. Near as I have been able to find out they are both decent lenses. I like the range of the canon but I like the F2.8 with the tokina. Not to sure which way i will go at this time. $$ is an issue and both are close in price. I have been to Fred miranda a view times just to look and the user comments on the different lenses. Today i'm kinda thinking the Tokina because it sounds like a good lense nad i like the f2.8, but tomorrow.......still thinking.

[asnow]

Thanks for your input Aub. Discovered that there are two versions of the Sigma 10-20. One is a 4-5.6 (around $600) and the other is a 3.5 (around $700). My thinking is that when you have such a wide angle do you really need a faster lens. Note: The 10-22 Canon I rented is a 3.5-5.6 and it seemed to be easily fast enough. Also when it is that wide, not sure you are going to be worried about or even able to create much bokeh. And with the inverse rule you should be able to take pictures at 1/10 sec at 10mm The Tokina is I believe a 10-16. I kind of eliminated that in my mind as I like the little extra range to 20 or 22 that the Sigma and Canon give you.

Any other input or thoughts that others have would be appreciated.

[Mad Aussie]

And with the inverse rule you should be able to take pictures at 1/10 sec at 10mm
Handheld I'm guessing you mean. There are limitations to that rule ... and many people are unable to take a sharp shot at 10mm ... which, with a crop factor camera is closer to 16mm. There's no image stabilising on that lens to help either.

When I'm faced with two lens choices and the prices are similar, and one's a Canon ... I go the Canon every time. ;)