Features:
1) ND: 1.60Hi-index
2) 45% thinner than CR-39 lens, hi-scratch resistance
3) Hi-impact resistance
4) Diameter: 70mm, 72mm only for minus powers
5) Range of powers:
A) SPH: Plano TO -10.00
B) SPH: Plano - -8.00/Cyl: -0.25 ~ -2.00
C) SPH: +0.25 ~ +6.00/Cyl: -0.25 ~ -2.00
D) RX Power: Plano - -6.00, +0.25 ~ +4.00 with Cyl -2.25 ~ -4.00
6) Hard multi-coated (AR-coating), AR + EMI, UVA absorbed
7) Spherical and aspherical design for choosing