2.8mm Mini Board Lens 110°
For CCD Dome Cameras, Bullet CCD Cameras, IR CCD Cameras
With Fixed Board Lenses. (check with your camera manufacturer
if their lens mount will focus with 2.8mm). This lens is not for CMOS.
Most CCTV Cameras come standard with either a 3.6mm or 6mm lens. Successful surveillance of your target requires the correct lens. Basic rule is that if the target is close, the angle should be wide. If the target is at a distance, your lens should have a smaller angle of view. Check the Lens Calculator: http://www.videocamerasecurity.com/lens-calc/index.htm