Hanson TW-1004 Manual Focimeter
- Green LED light source
- Ranges of measurement: 0 to±25D Minimum: 0.125D graduation up to ±5D 0.25D graduations over ±5D to ±25D
- Cylinder Axis Range: 0 ~180°step 1°
- With Prism Compensator
- Prismatic Power Range:Prism diopter of Pattern A: at 1△ interval in the range of 0~5△Prism diopter of Pattern B: at 1△ interval in the range of 0~20△
- Prism base angle :at 50 intervals in the range of 0 ~180 degree
- Eyepiece Adjustment: ±5D
- Measurand Lens Diameter: φ16 ~φ80mm
