Item Type: Fixed Focus LensMaterial: ABSType: Fixed Focal Length LensMinimum Aperture: F1.0Wide Angle: 104 DegreeFocal Length: 4.0mm/0.157inin5%Optical Back Focus: 3.94mm/0.155in0.2Package List1 x Fixed Focus Lens18 MP HD LENS: 8MP lens provides high definition images for clearer viewing of objects. High resolution, clear color images can be displayed without any auxiliary light source in low illumination. 2HIGH COMPATIBILITY: Fixed focus lens can be adapted to most security cameras. Aperture can be fixed and locked, more convenient. Professional manufacturing, excellent characteristics and high reliability. 3UNIVERSAL FIXED FOCUS LENS: Camera prime lens can objectively record and reflect the speed and rhythm change of the subject's movement. Suitable for electronic microscope CCTV security cameras, etc. 4EASY INSTALLATION AND REMOVAL: 8MP HD camera lens is easy to install and remove, and does not affect the installation and use of other accessories. With its help, you will get better performance. 5RUGGED AND DURABLE: Camera fixed focus lens is made of ABS material with strong structure and durable. HD lens can provide you with excellent color reproduction, less noise and less distortion.