[05/10/2016] Sigma 17-50mm f/2.8 EX DC OS HSM FLD 恆定大光圈變焦鏡頭，Sigma 17-50mm f/2.8 EX DC OS HSM FLD Standard Zoom Lens – Choose Mount Brand New, USA Warranty, Authorized Dealer，全新，目前特價$299 USD。境內免運費。哪裡買：Buydig via eBay。更多促銷產品，請看:eBay Daily Deals。

amazon評價很好。