BuyDig offers the Sigma 50mm f/1.4 EX DG HSM Lens for Canon, model no. 310101, for the in-cart price of $369. Apply coupon code “VMESAVES20″, then checkout via V.me by Visa to drop it to $349. With free shipping, that’s $5 under last week’s mention and the lowest total price we could find by $90. It features a hyper sonic motor for silent, high-speed auto-focus.