Buy Dig via eBay offers the Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Lens for Nikon, model no. 883-306, Canon, model no. 883-101, Sony, model no. 883-205, or Pentax, model no. 883, for $249.99 with free shipping. That's tied with our July mention as the lowest total price we've seen. (It's a current low by $60.) It features a minimum aperture of f/22 and seven diaphragm blades.