L-25 magnifier with measurement scale on the glass
Magnifying glasses are optical instruments used for observation of the object with a certain increase, and those equipped with measuring scale are used to measure length.
Technical data:
| Magnification | 14 x |
| Focal length (mm) | 17.59 |
| Lens diameter (mm) | 15 |
| Linear field of view (mm) | 11 |
| Distance between the object and the surface of the lens – nominally (mm) | 12.33 |

