Feature: 1. 1.8mm Focal Length: The fish eye lens has 1.8mm focal length, 5MP resolution, provide you with high definition picture detail to preent information loss. 2. Wide Compatibility: The image format is 1/2.7in, 1/3in and CCD CMOS, can be used in fisheye cameras for CCTV cameras, you can record ideos smoothly to provide clear images. 3. Field of View: This lens has a wide view angle, 190°, 148°, 88° for 1/2.7in and 154°, 113°, 81.5° for 1/3in, allowing you to see large areas of the picture and control the oerall situation. 4. Premium Material: 5MP fisheye lens is made of high quality aluminum alloy material, high sensitivity, high reliability. Let you use it safely and securely. 5. Exquisite Manufacturing: Thread size of the camera lens is M12xp0.5‑6g, fixed aperture, professional manufacturing, high performance, good replacement for the old damaged one. Specification: Item Type: Fisheye Lens Material: Aluminum Alloy Sensing Area: 1/2.7in, 1/3in and CCD CMOS Focal Length: 1.8mm Back Focal Length: 6.5mm Back Focal Length: 5.98mm F NO.: 2.0+5%. Aperture (Iris): Fixed Aperture Field of View: 190°, 148°, 88°, for 1/2.7in 154°, 113°, 81.5° for 1/3in Resolution: 5MP M.0.D: 0.1m Thread Size: M12xP0.5-6g. Package List: 1 x Lens Note: The optical coating is very important for the imaging of the lens, and it needs to be handled with care to avoid scratching the coating