Specifications and Availability - Material : 1.56 Index Resin (nd=1.549, Abbe=38, Specific gravity=1.28) -Lens Size : 75mm Diameter with optics centered -Nominal Base Curve : 4.25, 6.25 -Add Power : +1.00 to +4.00 in 0.25D steps -Tolerance of Center & EdgeThickness :
Specifications and Availability |