Description Features:*2.1mm Fisheye lens, 1/2.5 format. About 155 degrees wide angle panoramic viewing.*Good replacement for your old or broken 1/2.5 Wide Angle Panoramic CCTV camera Lens, and the mount is M12 type.*Its easy to install and remove without affecting the installation and use of other accessories, after installing, your device will be as good as before.*With 5.0 Megapixel high definition image, good color reduction and small distortion. It provides wide and clear vision for your vidicon.*Mini lens, small size, with beautiful appearance. It is your cost-effective choice.Specifications:Focal-Length(mm): 2.1mmMount type: M12*0.5Format(inch): 1/2.5Horizontal Field: 155Aperture: F2.0M.O.D: 0.1mIR Filter: noResolution: 5 MegapixelOperating Temperature: -20C~+80CItem Size: approx.17.5(D)x18(H)mmItem Weight: approx. 7gPackage Information:Package Size: Approx. 10 * 9 * 6cm / 3.9 * 3.5 * 2.4inPackage Weight: Approx. 10g / 0.35oz Package List:1 * 5MP 2.1mm MTV M12 Lens (IR filter is not included)