This might be the post you're thinking of:


Not a Bryan-quality review, but[url="http://www.juzaphoto.com/eng/articles/sigma_10-20_vs_canon_tamron_tokina.htm]here is a review with some comparison shots of five UWA lenses[/url], the Canon 10-22, both Sigma 10-20s, the Tokina 11-16 and the Tamron 10-24.



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