| Finite plan metallurgical microscope objective | |||||
| Mag. | N.A. | W.D. | Conjugate distance | Parfocal distance | Cover glass thickness |
| 5X | 0.12 | 11.03 | 195 | 45 | 0 |
| 10X | 0.25 | 18.34 | 195 | 45 | 0 |
| 20X | 0.4 | 5.8 | 195 | 45 | 0 |
| 40X | 0.65 | 3.6 | 195 | 45 | 0 |
| 50X | 0.55 | 3.75 | 195 | 45 | 0 |
| 60X | 0.85 | 1 | 195 | 45 | 0 |
| 100X（dry） | 0.8 | 1.13 | 195 | 45 | 0 |
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