- Range of diopter measurement: from 0D to +/- 20D
- Minimum scale value: 0.125D at 0D to +/-5D, 0.25 at+/-5D to +/-20D
- Astigmatism axis of cylindric lens: 0 to 180 degree, minimum scale value 5 degree
- Prism case angle: 0 to 180 degree, minimum scale value 5 degree
- Regulation of ocular visibility: +/-5D
- Size of lens: 30mm to 90mm
- Overall dimensions of device: 46*17*24cm
- Weight: 7.4Gkgs
- Lighting lamp: 220V 25W/ 110V 25W
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manual lensometer
High Quality Manual Lensmeter
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