Thank you guys i really appreciate that. I was leaning towards the Sigma as i had long heard that it was the better lens and had that extra 2mm which i appreciate is a lot however the Tokina threw me a little as it delivers great results but the down side is the lack of any zoom, its practially a fixed lens. Also i hear with the Tokina there is a real mix in good and bad lenses due to the production methods at the factory so some of the lenses are great and others are dogs but then i have read the same about the Sigma. Anyway im off to Croydon Jessops to look at both today in my lunch. I will also have to compare the Sigma f3.5 and the F4 to each other. Its going to be a long lunch!!!!
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