I personally find Tokina AT-X lenses superior to Sigma and Tamron. They're built like tanks, all metal casings. The af is fast as well. Optics wise, my 12-24 runs on par with th 10-22, where the tokina is better in the long end wide open and the canon is better in the short end wide open. Both are near similar when at f8 or higher.


Tokina is the T of THK, Tokina Hoya Kenko. For many years, Hoya worked with Minolta on their glass and Minolta has always been known for the colors.