Overview Reviews Product Description Multi-Format Lens: 1/3" Format, F1.4 - C Relative Aperture, 95.6-deg Horizontal Field of View (wide-tele), CS Mount Type (F) Product Videos Custom Field Product Reviews Write a Review Write a Review × National National NL284 CCTV Manual Iris Monofocal Lens 2.8mm Focal Length F1.4 ! NEW ! Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *