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              [html]<thead><tr><td>Classification</td><td>Optical System</td><td>Magnification</td><td>Numerical Aperture</td><td>Working Distance</td></tr></thead><tbody><tr><tdrowspan="4">Achromatic Objective</td><td>Dry</td><td>4x Adjustable Focus</td><td>0.1</td><td>37.42mm</td></tr><tr><td>Dry</td><td>10 ×</td><td>0.25</td><td>7.14mm</td></tr><tr><td>Dry</td><td>40 × Spring Adjustable Focus</td><td>0.65</td><td>0.57mm</td></tr><tr><td>Oil Immer -</td><td>100x Spring Adjustable</td><td>1.25</td><td>0.18mm</td></tr></tbody>
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