1.56 Progressive Blue Block Photogrey SHMC
Refractive Index:n(e)=1.553
Abbe Value:39
Specific Gravity:1.20
72/12MM Coating:HMC,EMI
Multi color:Green,blue
Refractive Index:n(e)=1.553
Abbe Value:39
Specific Gravity:1.20
72/12MM Coating:HMC,EMI
Multi color:Green,blue