| Standard | High Precision | ||||||
| Part No. | ø(mm) | T(mm) | Unit Price | Part No. | ø(mm) | T(mm) | Unit Price |
| WIN3025 | 25.4 | 3 | $6.60 | WIN3125 | 25.4 | 6.35 | $15.50 |
| Material | CaF2 |
| Dimension Tolerance | +0.0/-0.2mm |
| Thickness Tolerance | ±0.2mm |
| Clear Aperture | >90% |
| Parallelism | Standard: 1 arc minute High Precision: 10 arc seconds |
| Surface Quality | Standard: 80/50 High Precision: 40/20 |
| Wavefront Distortion | Standard: λ@633nm per 25mm High Precision: λ/4@633nm per 25mm |
| Chamfer | Protected <0.5mmx45deg |
| Coating | Uncoated, AR,HR,PR,etc |