rokinon Rokinon 12mm F2.0 Ultra Wide Angle Lens for Sony Fuji X, Silver Written by admin on December 17th, 2023. Rokinon 12mm f/2.0 NCS CS Lens for Sony Fuji X (Silver). ROKINON 12MM F2.0 ULTRA WIDE ANGLE LENS FOR SONY FUJI X, SILVER SPECIFICATIONS. Its fast f/2.0 maximum aperture is further beneficial to working in low-light conditions.