| Material | BK7 Grade A optical glass UV Grade fused silica |
| 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: 60/40 High Precision: 20/10 |
| Wavefront Distortion | Standard: λ/4@633nm per 25mm High Precision: λ/10@633nm per 25mm |
| Chamfer | Protected: <0.5mm@45deg |
| Coating | Uncoated, available |
| BK7 Grade A optical glass | |||||
| Standard | High Precision | ||||
| Part No. | ?(mm) | T(mm) | Part No. | ?(mm) | T(mm) |
| WIND10T3 | 10.0 | 3.0 | WIND10T6.35 | 10.0 | 6.35 |
| WIND12.7T3 | 12.7 | 3.0 | WIND12.7T6.35 | 12.7 | 6.35 |
| WIND15T3 | 15.0 | 3.0 | WIND15T6.35 | 15.0 | 6.35 |
| WIND20T3 | 20.0 | 3.0 | WIND20T6.35 | 20.0 | 6.35 |
| WIND25.4T3 | 25.4 | 3.0 | WIND25.4T6.35 | 25.4 | 6.35 |
| WIND30T3 | 30.0 | 3.0 | WIND30T6.35 | 30.0 | 6.35 |
| WIND38.1T3 | 38.1 | 3.0 | WIND38.1T6.35 | 38.1 | 6.35 |
| WIND50.8T6.35 | 50.8 | 6.35 | WIND50.8T10 | 50.8 | 10.0 |
UV Grade fused silica | |||||
| Standard | High Precision | ||||
| Part No. | ?(mm) | T(mm) | Part No. | ?(mm) | T(mm) |
| FWIND10T3 | 10.0 | 3.0 | FWIND10T6.35 | 10.0 | 6.35 |
| FWIND12.7T3 | 12.7 | 3.0 | FWIND12.7T6.35 | 12.7 | 6.35 |
| FWIND15T3 | 15.0 | 3.0 | FWIND15T6.35 | 15.0 | 6.35 |
| FWIND20T3 | 20.0 | 3.0 | FWIND20T6.35 | 20.0 | 6.35 |
| FWIND25.4T3 | 25.4 | 3.0 | FWIND25.4T6.35 | 25.4 | 6.35 |
| FWIND30T3 | 30.0 | 3.0 | FWIND30T6.35 | 30.0 | 6.35 |
| FWIND38.1T3 | 38.1 | 3.0 | FWIND38.1T6.35 | 38.1 | 6.35 |
| WIND50.8T6.35 | 50.8 | 6.35 | FWIND50.8T10 | 50.8 | 10.0 |
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