| Property | Value |
|---|---|
| Material | K9, optical glass, UV quartz, fluorine |
| Focal length(f) | ±2%@587.6nm |
| Dimensional tolerances | -0.05~0.1mm |
| Center thickness tolerance | ±0.03~0.1mm |
| Centering(arcmin) | 30"~3' |
| Power(W) | 1~5 |
| Irregularity | 0.2~0.5 |
| Surface quality | 60-40 40-20 |
| Clear aperture | >90% |
| Coating | AR coating |
| Diameter (mm) | Focal Length (mm) | Back Focal Length (mm) | Center Thickness (mm) | Edge Thickness (mm) | Radius of Curvature (mm) |
|---|---|---|---|---|---|
| 6.0 | -6.0 | -6.1 | 1.5 | 2.5 | -9.7 |
| 9.0 | -9.0 | -9.5 | 2.0 | 3.4 | -14.7 |
| 12.7 | -15.0 | -15.8 | 3.0 | 4.7 | -24.0 |
| 12.7 | -50.0 | -51.1 | 3.5 | 4.3 | -52.1 |
| 25.4 | -25.0 | -25.8 | 3.0 | 7.2 | -3.6 |
| 25.4 | -50.0 | -51.0 | 3.0 | 6.1 | -52.0 |
| 25.4 | -75.0 | -76.1 | 3.5 | 5.6 | -77.9 |
| 50.0 | -100.0 | -101.6 | 5.0 | 11.3 | -104.55 |
| 50.0 | -125.0 | -126.6 | 5.0 | 9.95 | -130.48 |
| 75.0 | -150.0 | -151.8 | 5.0 | 14.42 | -156.57 |