Sigma F2.8 50mm macro lens for Canon .

I bought this lens from Ebay but it was wrongly described. The description was that it was for Sigma but now that the lens has been delivered it is actually for a Canon camera. As I have Pentax K100d and a Sigma SD14 the lens is of no use to me. If of interest then I can let you try it on your Canon body to ensure that it works 100%