1.1.56 HMC EMI LENS 2 Reflective Index:1.56 3.ABBE Value:38 4.Asperical Lens, Photo Lens 5.Coating: HC, HMC,SUPER Hydrobic 1.56 HMC EMI LENSReflective Index:1.56ABBE Value: 38Asperical Lens, Photo chromic LensCoating: HC, HMC,SUPER HydrophobicCE stardand 1.56 HMC Lenses (Optical Resin Lens)