Detailed Product Description:
1) Sensor: 1/2" CCD/CMOS2) Focal length: 25mm3) Back focal length: 8.63mm4) F/NO: 1.85) Iris: fixed6) Optical distortion: <-2%7) Len construction: 4 components, 4 glass8) Field angle (diagonal)9) 1/2" CCD: 18.5 x 14.5 x 11.1 degrees10) 1/3" CCD: 14 x 11.1 x 8.3 degrees11) MOD: 20cm - unlimited
cctv lenses