Description
| Material | CaF2 |
| Dimension Tolerance | +0.0/-0.2mm |
| Thickness Tolerance | ±0.2mm |
| Surface Quality | 80/50 |
| Clear Aperture | >90% |
| Wavefront Distortion | <λ per 25mm@633nm |
| Parallelism | <3 arc minutes |
| Chamfer | Protected<0.5mmx45° |
| Coating | None, per your request |
