I want to buy a wide angle lens for Canon 60D camera. Currently I'm using it with a 24-105mm lens which is not wide enough on this crop body in many occasions. Do you have any recommendations on following lenses (or any other wide-angle lenses)?
http://goo.gl/NzglTJ

Sigma 10-20mm F/3.5 EX DC HSM
Sigma 18-35mm F1.8 DC HSM | Art
Sigma 12-24mm F/4.5-5.6 Aspherical EX DG
A DC series lens designed exclusively for use with smaller chip APS-c cameras

You think Sigma is better than Canon? How about Tokina?

I bought (ebay bidding) a sigma 14 mm 2,8 for the cropped sensor on the nikon d 200 I had back then. It worked fine, and the lens is super.
It works even better on full frame, just that you get feet and tripod legs in the frame...
;-)

It does pictures like this:

or this:

Quote from: 60D on April 06, 2014, 14:05
You think Sigma is better than Canon? How about Tokina?

No, but you'll have to pay a lot more for Canon. Lets say for half of the Canon price you'll get superb Sigma or Tokina lens!
If you're ready to pay full price the Canon L lenses are all-metal, and optically superb. Sigma is nowhere near L quality optically and mechanically.

I have the Canon EF-S 10-22 and it is good - bad problems with CA but pretty sharp.  It is lightweight and easy to carry while traveling.

Thanks for all your comments. Finally decided to go with Canon 10-22

Quote from: 60D on April 09, 2014, 16:41
Thanks for all your comments. Finally decided to go with Canon 10-22

If you shoot RAW and edit with DPP or Lightroom you should be able to automatically correct for any colour fringing using pre-loaded lens profiles.