When I clicked on your link to have a look at the website in question it already said I had one item in my shopping basket: Tamron SP AF17-50mm F/2.8 XR Di II LD ASP Canon Mount
Now I am not a cannon user but I note you are hence why I asked the question.
Also add to this if you had, even if you hadn't for that matter, added that lens then would anyone really want to be buying from a company/website that "dumps" information from one customer onto another totally random shopper, who knows what other information they may "dump" or reveal