rokinon Rokinon 10mm f/2.8 ED AS NCS CS Ultra-Wide Angle Lens for Canon EF-M Mount Written by admin on July 11th, 2023. Rokinon 10mm f/2.8 ED AS NCS CS Ultra-Wide Angle Lens for Canon EF-Mount. Full Manual Lens (No Auto-Focus). Item comes in original packaging with the manuals & everything, still pretty much in mint conditon.