Item Type: F1.0 Lens Material: ABS Type: Fixed Focal Length Lens Minimum Aperture: F1.0 Wide Angle: 104 Degrees Focal Length: 4.0mm 5% Optical Back Focus: 3.94mm 0.2 Package List 1 x F1.0 Lens 18MP HD: F1.0 camera lens is an 8MP HD lens with high resolution and displays clear color images without any auxiliary light source in low illumination. 2High Compatibility: HD 8MP lens is highly compatible and can be adapted to most security cameras. Aperture can be fixed and locked, more convenient and reliable. 3Universal Fixed Focus: Universal camera lens can objectively record and reflect the speed and rhythm change of the object's movement, which is suitable for electronic microscope and closed circuit TV. 4Easy To Use: F1.0 camera lens is easy to install and remove, and will not affect the installation and use of other accessories, very practical. 5Rugged And Durable: HD 8MP lens is made of premium ABS material, with strong and durable structure. It can provide you with less noise and less distortion.