BuyDig via eBay offers the Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Lens
for Nikon, model no. 883-306, or Canon, model no. 883-101 for $229
with free shipping
. That's the lowest total price we've seen for this lens by $21. (It's also a current low by $120.) It features a minimum aperture of f/22 and seven diaphragm blades.