Item Type: Camera Lens Material: Aluminum Alloy + ABS Model: CW-FM5014-8MP Focal Length: 50mm Image Format: 1in(16, 12.8x9.6) D/F: F1.4-16 Mount: C-Mounts Pixel: 8MP Field Angle (F.O.V) (H/V): 1in:14.5x10.8, 2/3in:10x7.5, 1/1.8in:8.2x6.2, 1/2in:7.3x5.5 BFL: 17.53mm M.O.D.: 0.3m Distortion:-0.25% Optical Length: 69.53mm Lens Construction: 6G Filter size: UV M37.0x0.75P Zoom: Manual Iris: Manual Focus: Manual Operating Temperature: -20-+80 How to Use: Simply install the lens to camera to use. Package List 1 x Camera Lens 18MP lens, provides highdefinition images, low distortion, observe objects more clearly. 250mm fixed focal length, objectively record and reflect the movement speed and rhythm changes of the subject. 3High compatibility, can adapt to most industrial cameras. The aperture can be fixed and locked, more convenient. 4It is simple to install and remove without affecting the installation and use of other accessories. 5Made of premium aluminum alloy material, rugged, anti-corrosion and durable, ensures long lifespan.