Sigma 18-250mm f3.5-6.3 DC OS HSM for $450

The Sigma 18-250mm f3.5-6.3 DC OS HSM superzoom lens is now offered for $450 at B&H Photo in the Canon EF, Nikon F, and Sigma SLR mounts. It is offered for the same price but without the OS (optical stabilization) in the Sony Minolta Alpha Dyxum Maxxum Pixxum and Pentax K-mounts (in pre-order state).