The new Sigma 50-150mm f/2.8 APO EX DC OS HSM now available at a street price of $1099.  The lens range works out to roughly a 75-225mm equivalent on APS-C cameras like the Canon 7D and Nikon D7000.  Canon, Nikon and Sigma-mount versions are expected to ship by the end of April.

The lens is currently available for pre-order at B&H Photo.