| Measurement | Clockwise click(s) from extreme Counter Clockwise |
| -4 | 0 |
| -3.5 | 1 |
| -3 | 2 |
| -2.5 | 3 |
| -2 | 4 |
| -1.5 | 5 |
| -1 | 6 |
| -0.5 | 7 |
| 0 | 8 |
| 0.5 | 9 |
| 1 | 10 |
| 1.5 | 11 |
| 2 | 12 |
| 2.5 | 13 |
| 3 | 14 |
I do not need it to correct my vision since I had my Lasik a few years bac, but I personally like to stick to -1 as it is much easier for my eyes to adjust to it than 0 position.