There's been a lot of talk about the suitability and the quality of the Sigma 15-30mm lens. I bought one of these on a recent trip to the USA and you could see the results from it in my gallery at http://www.alanrolfe.co.uk …php?set_albumName=usa2003
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The Arlington and Washington galleries were all taken using a Canon 28-135mm USM IS lens, but the otehr galleries mainly used the Sigma lens.
As usual, any constructive comments would be welcome.

