Specifications
Index(Nd): 1.499
Abbe value(VD): 58
Specific Gravity(P): 1.32
Meterial: CR-39
Diameter range: 70mm(±0.4)&65mm(±0.4)
Features
Hardness of lens surface 8H, resistance to scratching and abrasion
Transmission up to 99%
Water repellent
Can be seen more clear
Ultra high density
Certified ISO 9002...