| Nominal Curve | True Curve | Radius mm | SAG at 50 | Nominal Concave | Edge Thickness | Center Thickness | Adds in 0.25 Diopter Steps | Adds in 0.50 Diopter Steps |
| 10.00 | 10.08 | 52.579 | 6.32 | 3.00 | 7.0 | 11.0 | 2.00 to 3.00 | 3.50 to 6.00 |
| 12.00 | 12.11 | 43.765 | 7.84 | 3.00 | 7.0 | 11.5 | 2.00 to 3.00 | 3.50 to 6.00 |
| 14.00 | 14.12 | 37.535 | 9.54 | 3.00 | 7.0 | 12.0 | 2.00 to 3.00 | 3.50 to 6.00 |
| 16.00 | 16.11 | 32.899 | 11.51 | 3.00 | 7.0 | 13.0 | 2.00 to 3.00 | 3.50 to 6.00 |
| 18.00 | 18.08 | 29.314 | 14.01 | 3.00 | 7.0 | 14.0 | 2.50 to 4.00 | |
| 20.00 | 20.03 | 26.460 | 17.79 | 3.00 | 7.0 | 15.0 | 2.50 to 4.00 |