BuyDig via eBay offers the factory-refurbished 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 $249 with free shipping. That's a buck below our March mention of a new unit and the lowest total price we've seen. (It's also $100 below the best price we could find for a new unit today.) It features a minimum aperture of f/22 and seven diaphragm blades. A 4-year Sigma warranty applies.