| Customization: | Available |
|---|---|
| After-sales Service: | 1y |
| Warranty: | 1y |
|
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| Diameter Tolerance | +0.0/-0.1mm |
| Center Thickness Tolerance | ±0.1 mm.. |
| Focal Length Tolerance | ±1%.. |
| Surface Quality | 60/40, 40/20 or better.. |
| Material | BK7, UVFused silica, Ge,CaF2, ZnSe |
| Clear Aperture | >90% |
| Centering | <3 arc min |
| Coating | Custom |
| Bevel | Protective bevel as needed |
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