Sigma USA authorized dealer BuyDig has a hot deal on Sigma 17-50mm f/2.8 EX DC OS HSM lens for Canon EF mount. This is currently lowest price from authorized dealers.
Sigma 17-50mm f/2.8 EX DC OS HSM lens for Canon EF mount – $299.00 – at BuyDig.com (Discount price will be shown in the cart)
Regular price for this lens is $399 at most US stores.