Precision measuring magnifier with achromatic (colour error corrected), coated optics consisting of 3 elements and 2 assemblies. The measuring scale has a graduation of 0.1 mm and 20 mm measuring length. The contradiction between high resolving power and wide field of view has been completely eliminated in this product, providing powerful, precise control. For higher transmission, the lenses are coated with an AR coating (anti-reflective coating). The magnifier is supplied with a box for measuring magnifier and the five scales.
Measuring length 20 mm
Field of view: 24 millimetres
Size: 36 x 62 millimetres
Net weight: 128 g
In optics, an achromat is a system of two lenses consisting of glasses with different Abbe numbers (different degrees of dispersion). The system contains a converging lens (usually made of crown glass) and a diverging lens with a smaller Abbe number and thus stronger dispersion than the converging lens (usually made of flint glass). This allows the longitudinal colour error that every simple lens has to be corrected for two wavelengths, i.e. the system has the same cut-off for these two colours.