| Material | BK7, Fused Silica, SF10, CaF2, Sapphire, etc. |
| Dimension Tolerance | ±0.2(General) ±0.05(High Precision) |
| Thickness Tolerance | ±0.2mm |
| Design Wavelength | 546.1nm |
| Surface Quality | 60/40 scratch and dig |
| Flatness | λ/4@633nm(General) λ/10@633nm(High Precision) |
| Centration | <3arc minutes |
| Focal Length Tolerance | ±2% |
| Clear Aperture | >90% |
| Chamfer | Protective<0.5mmx45deg |
| Coating | Uncoated, AR, PR, HR, etc. |
| Part No. | material | D(mm) | F(mm) | R1(mm) | R2(mm) | Tc(mm) | Te(mm) | Fb(mm) |
| MEND25.4F50 | N-BK7 | 25.4 | 50 | 20.58 | 90 | 6 | 2.5 | 45 |
| MEND25.4F100 | N-BK7 | 25.4 | 100 | 32.1 | 82.2 | 3.6 | 2 | 95.9 |
| MEND25.4F125 | N-BK7 | 25.4 | 125 | 40.6 | 106.9 | 3.3 | 2 | 121.2 |
| MEND25.4F150 | N-BK7 | 25.4 | 150 | 49.1 | 131.6 | 3.1 | 2 | 146.3 |
| MEND25.4F200 | N-BK7 | 25.4 | 200 | 66.2 | 182.2 | 2.8 | 2 | 196.5 |
| MEND25.4F300 | N-BK7 | 25.4 | 300 | 100.9 | 288.2 | 2.5 | 2 | 296.5 |
| MEND25.4F500 | N-BK7 | 25.4 | 500 | 123.9 | 235 | 3.5 | 3.2 | 495.4 |
| MEND50.8F100 | N-BK7 | 50.8 | 100 | 30.3 | 65.8 | 9.7 | 1.1 | 88.8 |
| MEND50.8F150 | N-BK7 | 50.8 | 150 | 47.9 | 119.3 | 7.3 | 2.7 | 141.7 |
| MEND50.8F200 | N-BK7 | 50.8 | 200 | 65.2 | 171.6 | 6.2 | 2.9 | 192.9 |
| MEND50.8F250 | N-BK7 | 50.8 | 250 | 82.5 | 224.7 | 5.5 | 2.9 | 243.5 |
| MEND50.8F300 | N-BK7 | 50.8 | 300 | 100.1 | 279.1 | 5.1 | 3 | 293.8 |
| MEND25.4F-50 | N-BK7 | 25.4 | -50 | 90 | 19.9 | 3 | 6.7 | -49.5 |
| MEND25.4F-100 | N-BK7 | 25.4 | -100 | 90 | 32.59 | 3 | 4.5 | -99.2 |
| MEND25.4F-150 | N-BK7 | 25.4 | -150 | 100 | 43.1 | 3 | 4.1 | -148 |
| MEND25.4F-200 | N-BK7 | 25.4 | -200 | 100 | 50.2 | 3 | 3.8 | -197.3 |
| MEND25.4F-300 | N-BK7 | 25.4 | -300 | 250 | 95.1 | 3 | 3.5 | -297.8 |
| MEND25.4F-400 | N-BK7 | 25.4 | -400 | 250 | 112.5 | 3 | 3.4 | -397 |
| MEND25.4F-500 | N-BK7 | 25.4 | -500 | 250 | 126.3 | 3 | 3.3 | -496.3 |
| MEND25.4F-1000 | N-BK7 | 25.4 | -1000 | 500 | 253.2 | 3 | 3.2 | -994.6 |
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