I'm still in love with my EF-S 10-22mm. The only drawback is that now I can see what a difference a quality lens makes, it makes my other lens seem inadaquate and I can see it costing me a fortune upgrading them. 
Anyway, I was planning on buying a hood for the 10-22 but the hoods are so shallow and the petals so small, I was wondering if they are actually all that effective?
Thanks in advance.

