Anastigmatic Magnifier, 4x

Inspect entire large areas, 32 x 45mm or flat objects less than 58mm in diameter. The image observed through the loupe is critically sharp from the center to the edge of the image field because of the careful optical correction of the lupe for astigmatism and curvature of field as well as aberrations concerning the image of the central image. Ordinary magnifiers are corrected only for the central image. This lupe is similar to anastigmatic photographic lenses and is manufactured with the same care and precision.