B&H Photo Video offers the Olympus M.Zuiko 17mm f/1.8 Lens in Silver for $399 with free shipping. (Several other stores are matching this price, including Newegg, Adorama, and Amazon.) That's the lowest total price we could find by $7, although many places charge around $500. It's compatible with the Olympus E-PM2, E-PL5 and E-P5 DSLR cameras and features a minimum focusing distance of 25cm.