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Focus variation microscope characteristics.
| Instrument Characteristic | Value |
|---|---|
| Objective magnification | 20× |
| Numerical aperture | 0.40 |
| Working distance/mm | 13.0 |
| Field of view/µm | 714 × 542 |
| Digital lateral resolution/µm | 0.44 |
| Declared vertical resolution/nm | 0.14 |
