<ul><li>1.Can measure Sphere, Cylinder power, Cylinder axis, prism power and baseline direction. Can also mark the lenses at the optical lens center, cylinder axis and cylinder baseline direction.</li><li>2. Cardinal point can be adjusted by compensator.</li><li>3. Compliant with both AC and DC</li><li>4. Clear graduation. High Accuracy. Easy operation. Excellent reliability.</li><li>Model NJC-4</li></ul> Model NJC-4 Vertex Power Range -20D~+20D(0.12D ) Cylindrical Axis 0 -180 Step: 1 Prismatic Power 5 diopters Step: 1 diopter Lens Diameter 20- 80 mm Eyepiece Focusing -5D ~ +5D Power Supply DC 3 V; AC 220 V/ 110 V

Manual lensmeter Optical lensometer Focimeter External Reading AC DC Power NJC-4