materialBaK-4Phase-correctedYesLens coatingfull multi-coating Optical properties Magnification10 xLens diameter32 mmExit pupill3.2 mmGeometric luminosity10.2Twilight number17.9Near point1 mField of view/Visual

hold magnifiers freely (e.g. age-related shaking or Parkinson‘s disease).Magnifier heads with a diameter greater than 58 mm (Item No. 15539-, 15549-, 15599-) are fitted with a retractable red reading line