Rokinon USA authorized BestPriceOptics has a great deal on Rokinon 16mm f/2.0 ED AS UMC CS lens for Canon EF-S mount.
Rokinon 16mm f/2.0 ED AS UMC CS Lens for Canon EF-S mount cameras – $299.00 – at BestPriceOptics via eBay.com
This is currently lowest price for this lens. Regular price is $399 in US.