Specification for M12 5.5mm f1.8 Lens Parameter Specification Focal length5.5mm Aperturef1.8 Image format1/1.8“ ResolutionMP Distortion2.2% FOV-D76° FOV-H64.5° FOV-V51° MountM12x0.5 MaterialGlass FilterIR cutout ManufacturerEvetar