| ng | a (nm) | |D| | Δλ (nm) |
| 39.0 | 182.5 | ≤1.0 | 2.73 |
| 43.0 | 183.1 | ≤1.0 | 2.26 |
| 51.0 | 184.4 | ≤1.0 | 1.26 |
| 66.1 | 186.7 | ≤1.0 | 0 |
| 92.6 | 189.7 | ≤1.0 | 0.62 |