Description:* This is 2.8mm focal length camera lens.* Imaging of fringe and centre is consistent.* Excellent coating process, it has F2.0 large aperture. Specifications:Product Name: Camera LensColor: Black Material: Glass and MetalFocal Length: 2.8mm Mount: M12 Pixel: 3MPFormat: 1/2.5 Inch Aperture: F2.0 Thread Pitch: 0.5mmThread Length: 12mmDimension: 20mm x 15.5mm(L*D) Package Content: 3 Pcs x Camera Lens.