Technical Specifications:
- Synchronized Cross-Cylinders (+) or (-)
- Spherical Lens -19.00DS to +16.75DS in 0.25D steps (0.12D steps with auxiliary lens)
- Cylindrical Lens 0 to -6.00D in 0.25 D steps (0 to -8.00D and in 0.12D steps with auxiliary lens)
- Axis of Cylindrical Lens 5° steps
- Cross Cylindrical Lens ±0.25D
- Rotary Prism Range of measurement 0, -20, Step 1
- Pupil Distance Range 1.97in / 50mm ~ 3in / 75mm, Step 0.04in / 1mm
- Aggregated Adjustment 0,15in / 380mm
- Adjustment of Forehead Rest 0.63in / 16mm