Sigma 105mm f2.8 EX MACRO DG OS for $570 (C/N/A/S)

The Sigma 105mm f2.8 EX MACRO DG OS is on sale for $570 with free shipping and 4% promotional rewards at B&H Photo in the Canon, Nikon, Sony and Sigma SLR mounts… The same price is also available by Amazon itself but without the 4% rewards…