Feature:1. High quality lens, 8mm length , f/3.8 aperture, suitable for using in low light environment.2. Manual lens, 180 ° lens angle. Lens multi-layer coating 5 groups 6 pieces.3. This camera fisheye lens provides ultra-clear for your camera.4. Combination of advanced optical elements, it ensures a full range of clarity and effective light conductivity. The aperture can be manually adjusted according to the available light levels.5. Suitable for M4/3 mount mirrorless camera.Specification:Lens Model:0838 NFocal Length:8mmThe Largest Aperture: 3.8The Smallest Aperture：16Function:Aperture: ManualFocusing: ManualZoom:-Distortion:-Farthest Focusing: ∞Close Focus:10cmShooting Angle: 180°Optical Structure：Five Groups Of SixThe Lens Coating: MC Multi-layerThe Aperture Blades：6 PiecesAnti-shake Function：Without Lens Type：Pure ManualLens Hood：Come WithLens Material: All MetalCondition: 100% Brand NewItem Type: Fish-eye LensMaterial: Metal + optical glassColor: As Pictures Shown Weight: Approx.135gSuitable for Olympus M4/3 mount:for EPM1,EPM2,EPM1,E-PL1,E-PL2,E-PL3,E-PL5,E-PL6,E-PL7,E-PL8,E-PL9,E-P1,E-P2,E-P3,E-P5,E-M1,E-M1II, E-M5,E-M5II,E-M10,E-M10II,E-M10III.Suitable for M43 mount:for G1,G2,G3,G5,G6,G7,G9,GF1,GF2,GF3,GF5,GF6,GF7,GF8,GF9,GF10GM1,GM5,GM7,GX1,GX7,GX8,GX9,GX85,GH1,GH2,GH3,GH4. Package List:1x Fish-eye Lens1x Rear Cover1x Lens Cover