sorry for my porly english
  Yes, but.... 
  Canon 18-55 is good,  but without character, for me
  I have actually Tamron 11-18
  i am really interested by the range 12-24 from Tokina
 to do other pictures with it, building, portrait and landscape
 and have only one (I hope)
 The very big disadvantage is the weight; 640gr
  My fear is, like a friend videowoman with a fisheye 10,
 if she cross a cloud, hes fisheye is with lots of fog
 I want no that, so I search history return about this lens. 
  I think I found in a forum french, I am wait about.
 And I tell you after.