Tamron 1/3" 5-50mm F/1.6-360 DC Auto-Iris CS-Mount Lens IR Day CCTV Camera
IrisDC Auto Iris. Focal Length5 - 50mm. Aperture LengthF/1.6 - 360. Wave LengthVisible Light - Near Infrared. Mount TypeCS. CLOSE : 0.5V. Back Focal DistanceWide : 13.71mm( in air ). ZoomManual w / lock.