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