Nikon Gem Appraisal Loupe 10X NEW In (Made Japan)

Resolution of 63 lines/mm Distortion aberration correction airtightness metal through hole Body material: optical glass/resin/metal Size: 42mm x 24mm x 16mm (when stored) It has an excellent resolution of 63 lines/mm or more and is recommended for high-precision appraisal of writing instruments and jewelry. Chromatic aberration and distortion are almost eliminated by the 3-piece laminated lens. The frame and case have a black matte finish to prevent reflections and make them easier to see.