Product description:
External Reading Lensmeter SML-II - INS-11031<br /><br />Dimensions: 15 x 8 x 21 in / 38 x 20 x 53 cm <br />Weight: 13 lb / 6 kg<br /><br />Features:<br />- Internal reading-<br />- ±25D measurement<br />- Wide field of vision observation <br /><br />Specifications:<br /><br />- Range of measurement: 0D to ±25D<br />Minimum: 0.125D graduation up 0D to ±5D 0.25D graduation over ±5D to ±25D<br />- Cylinder axis range: 0~180° step 1°<br />- Prismatic power range:<br />Prism diopter of pattern A: 0-5 prism diopters,1° graduations<br />CT4226B (with prism compensator) 0-20° 1° step<br />- Prism base angle: 0 to 180 degree<br />- Eyepiece adjustment: ±5D<br />- Dimension of objective lens: F16 ~ F86MM<br /><br />- Lighting bulb: 110V / 220V - 15W <br />- Bi-Voltage AC 100V 60hz/220V 50hz