1) Nd=1.70, super slice, UV320nm 2) Consistency: 3.08g/cm3 3) ... : Spheric / Aspheric Lighter, slim and particular suitable for high minus lens 5) Diameter: 65mm 6) Range of power: a) SPH: -0 ... + EMI coating available 9) Semi-finished lenses: Base: 0.50, 1.00, 2.00, 3.00, 4.00, 5.00, 6 ...