3MP M12 HD CCTV Camera Lens

3MP M12 HD 2.8-12mm 1/2.5" IR 1:1.4 CCTV Camera Lens Manual Zoom for Security Camera Specification :Resolution: 3MPRelative aperture: F1: 1.4Focal length: 2.8-12Mount: M12Horizontal Field: 108-31.2°Dimension (mm): Φ28.6×44.8Weight: 34Close distance: 0.2mOperationZoom: Manual ...3MP M12 HD 2.8-12mm 1/2.5" IR 1:1.4 CCTV Camera Lens Manual Zoom for Security Camera Specification :Resolution: 3MPRelative aperture: F1: 1.4Focal length: 2.8-12Mount: M12Horizontal Field: 108-31.2°Dimension (mm): Φ28.6×44.8Weight: 34Close distance: 0.2mOperationZoom: Manual - Focus: Manual - Iris: Fix - Operating Temerature: -20°C to +80°CBack focus: 7.1-13.6Lens Construction: 6 sets of 8 tablets - Nail: M2x13, M2x8.5? Package includeds :1 x 3MP M12 2.8-12mm Lens?