Rokinon Cine CV12M-NX 12mm T2.2 Cine Lens for Samsung NX Cameras Depth of Field Markings 98.9 degree / 19mm (35mm Equivalent) Declicked (Uncoupled) and Geared Aperture and Focus Nano Coating System (NCS) For Increased Light Transmission and Reduced Internal Reflections Utilizes 1 Hybrid Aspherical (H-ASP) + 1 Aspherical (AS) + 3 Low-Dispersion (ED) High Precision Glass Lens Elements For Superior Image Quality