Sigma USA authorized dealer BuyDig has a hot deal on Sigma 150-500mm DG OS HSM APO lens.
Sigma 150-500mm f/5-6.3 DG OS HSM APO Lens for Nikon mount – $724.99 – at BuyDig via eBay.com – Deal Expired
The regular price for this lens is $899.00 at most US stores.