I just got into photography and picked up a Canon T3i with the 18-55 mm lens. I also have a 75-300mm but will probably sell it. There is no specific type of photography I am interested in at the moment. If anything, I will be taking pics. of friends, city life, and snowboarding. I will be going to Maui, Hawaii in the next two weeks and would like some suggestions about what lens I should purchase. I will be taking the typical tourist photos - landscape, people, beach, etc.; pretty much everything. I was looking at these two lenses: Sigma 10-20mm 4-5.6 or Tokina 11-16mm 2.8. I will be using the lens for the wide-angle shots, to absorb as much detail in the environment. However, I also snowboard, so I will be using whatever lens I purchase when winter comes around. Which lens would you guys recommend? The only other lens I will be bringing is the 18-55 mm 3.5-5.6, and, maybe, if my friend lets me borrow it, a 50 mm 1.8 lens. Or are there other lenses I should look into?