| Material | BK7 Grade A optical glass |
| Dimension Tolerance | ±0.2mm |
| 90°Deviation Tolerance | <30 arc seconds |
| Flatness | λ/4@632.8nm |
| Surface Quality | 60/40 scratch and dig |
| Coating | Protected Aluminum reflective coating Single Layer MgF2 AR coating at visible |
| Clear Aperture | >90% |
| Chamfer | Protective |
| Part Number | Material | A (mm) | h (mm) | 90° deviation tolerance | Coating |
| PTP0706 | BK7 | 7 | 6 | 30 arc sec | Protected Aluminum + MgF2 |
| PTP1010 | BK7 | 10 | 10 | 30 arc sec | Protected Aluminum + MgF2 |
| PTP2020 | BK7 | 20 | 20 | 30 arc sec | Protected Aluminum + MgF2 |
| PTP2525 | BK7 | 25.4 | 25.4 | 30 arc sec | Protected Aluminum + MgF2 |