| Material | Optical Glasses |
| Design Wavelength | 480, 546.1, 643.8nm |
| Dimension： | D2.0mm-D50.8mm |
| Dimension Tolerance | +0/-0.2mm |
| Thickness Tolerance | ±0.2mm |
| Surface Quality | 60/40 scratch and dig |
| Power(fringe@633nm) | 3 |
| Irregularity(fringe@633nm) | 0.5 |
| Centration | <3 arc minutes |
| Focal Length Tolerance | ±2% |
| Clear Aperture | >90% |
| Chamfer | Protective <0.5mmx45deg |
| Coating | Single layer MgF2 coating @550nm |
| PN. | Material | F(mm) | D(mm) | Tc(mm) | Te(mm) | R1(mm) | R2(mm) | R3(mm) | Coating(nm) |
| DBTD12.7F25 | N-BaF10+N-SF10 | 25 | 12.7 | 6.3 | 4.9 | 17.27 | 10.99 | 107.03 | MgF2 @ 550nm |
| DBTD12.7F30 | K9+H-ZF1 | 30 | 12.7 | 5 | 3.4 | 17.86 | 13.53 | 44.17 | MgF2 @ 550nm |
| DBTD12.7F40 | K9+H-ZF2 | 40 | 12.7 | 5.1 | 3.8 | 24.77 | 18.01 | 51.17 | MgF2 @ 550nm |
| DBTD12.7F50 | K9+H-ZF2 | 50 | 12.7 | 5 | 4 | 30.73 | 22.32 | 64.75 | MgF2 @ 550nm |
| DBTD12.7F60 | K9+H-ZF2 | 60 | 12.7 | 5 | 4.2 | 36.51 | 21.33 | 78.35 | MgF2 @ 550nm |
| DBTD12.7F75 | K9+H-ZF1 | 75 | 12.7 | 4 | 3.4 | 41.30 | 33.96 | 137.09 | MgF2 @ 550nm |
| DBTD25.4F75 | K9+H-ZF2 | 75 | 25.4 | 9.5 | 6.9 | 46.44 | 33.77 | 95.94 | MgF2 @ 550nm |
| DBTD25.4F100 | K9+H-ZF2 | 100 | 25.4 | 8.5 | 6.5 | 61.47 | 44.64 | 129.94 | MgF2 @ 550nm |
| DBTD25.4F125 | K9+H-ZF2 | 125 | 25.4 | 8.4 | 6.8 | 76.28 | 54.55 | 162.43 | MgF2 @ 550nm |
| DBTD25.4F150 | K9+H-ZF2 | 150 | 25.4 | 7.9 | 6.6 | 91.37 | 66.21 | 197.71 | MgF2 @ 550nm |
| DBTD12.7F-25 | H-ZBaF52+H-ZF4 | -25 | 12.7 | 4.6 | 5.9 | 17.75 | 12.17 | 109.75 | MgF2 @ 550nm |
| DBTD12.7F-40 | H-ZBaF52+H-ZF4 | -40 | 12.7 | 8.5 | 9.3 | 27.82 | 19.65 | 201.68 | MgF2 @ 550nm |
| DBTD12.7F-50 | H-ZBaF52+H-ZF4 | -50 | 25.4 | 6.6 | 9.3 | 35.51 | 24.58 | 217.99 | MgF2 @ 550nm |
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