| Material:UV grade CaF₂ | Design Wavelength:4μm |
| Dimension Tolerance:+0.0/-0.1mm | CT Tolerance:±0.1mm |
| Irregularity:λ/2@632.8nm | Clear Aperture:> 90% |
| EFL Tolerance:±1% | Centration:≤ 3' |
| Surface Quality:40/20 | Bevel:0.2mmx45° |
| Coating:See details in the list | Housing:See details in the list |