Specifications:
• Measurement Range:
• Sph. Lenses: -25D do 25D
• Cyl. Lenses: -10D do +/-10D
• Cyl. Axial Angle: 0° do 180°
• Prism: 1D do 10D
• Step range : 0,01; 0,12; 0,25D
• Add: 0,01; 0,12; 0,25D
• Minimum scale value: 1
• Lens Diameter: ø10 do ø90