| Dimension tolerance | ±0.2mm |
| Surface quality | 60/40 |
| Clear aperture | >90% |
| Flatness | <λ/4@632.8nm |
| 90° deviation tolerance | <30 arc seconds |
| 180° deviation tolerance | <30 arc seconds |
| Coating | Protected Aluminum reflective coating Partial reflective coating on cemented surface Single Layer MgF2 AR coating at visible |
| T/R tolerance | ±5% |
| Chamfer | Protective<0.5mmx45° |
| Part Number | Material | A (mm) | h (mm) | Deviation | T/R (%) | Wavelength (nm) |
| BPP0706-400-700 | BK7 | 7 | 6 | 30 arc sec | 20/80±5% | 400-700 |
| BPP1010-400-700 | BK7 | 10 | 10 | 30 arc sec | 20/80±5% | 400-700 |
| BPP2020-400-700 | BK7 | 20 | 20 | 30 arc sec | 20/80±5% | 400-700 |
| BPP2525-400-700 | BK7 | 25.4 | 25.4 | 30 arc sec | 20/80±5% | 400-700 |
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