Meterial is glass and metal case,no plastic,So it can be used for high temperature and cold environment(-20 to 60).it can be supported by OV4689/OV5658 Sensorthe coating machine for muti-layer coating has excellent transmittance,effectively eliminate stay light and halo features.Wide length 6mm to 22mm.long distance about 50m,High precision machining and optical design ensures that every length can get a clear image.Support IR Function,it can be used in the night.lens has very precision ,It's that no loss of length in the night.lens has F2.0,it supports Camera,makes colourful image in night!colour: black Material: metal + glassModel: FG-M12VF0622IR-5MPPixel: 5MP length: 6-22mm: F1.6D.: 0.Mount: M12Image Format: 1/2.5 inchField Angle Dx HxV(degree)(1/2.5 inch): 20.4 degree x 16.3 degree x 12.2 degree ~ 58 degree x 46.4 degree x 34.8 degreeBack length: 6.2mmFlange backfocallength: 13.5mmOptical backfocallength: 6.4mmWeight: 30.6gIR Correction: YesDimension: diameter 28*45.3mmFocus: ManualZoom: ManualIris: ManualIncluded: 1 x CCTV Camera LensOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.