BuyDig via eBay offers the Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Lens for Nikon, model no. 883-101, Canon, model no. 883-101, Sony, model no. 883-205, or Pentax, model no. 883, for $229 with free shipping. That's the lowest total price we could find by $57, although we saw it for $10 less two weeks ago. It features a minimum aperture of f/22 and seven diaphragm blades.