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Sigma 10-20

I've been using the 10-20 (older version) for over 2 years, i'm finding more and more that it just sits in my camera bag and I dont use it half as much as I used to. I find all my best shots are now taken with the 18-70 which gives a much more pleasing perspective for most things. The Sigma is just so useful though for things like waterfalls and seascapes so I darn't get rid of it because i just know one day i'll need it!