25mm f/1.4 C Mount CCTV Lens for Sony NEX-3 NEX-5 C-NEX & Canon, Nikon, Olympus EP-1, E-P2, E-PL1, Panasonic G, GH, GF C-M4/3 Mount type: C mount Focal length: 25mm Aperture: F1.4-C Iris/ Focus operation: manual. Object distance: 30cm Cinfinite Angle of view: 19.6