LC-7A Lens Meter
1. Eyepiece focusing range: ¡À5D
2. The top point dioptre measuring range: -25D ~ +25D
3. The minimum measuring square value: 0.125D
4. The shuttle lens measuring range:  10
5. The shuttle lens square value: 1
6. The cylinder lens axial range: 0-180¡ã
7. The cylinder lens axial square value: 1¡ã
8. The maximum diameter of the measured lenses:  100mm
9. The lighting: AC 220v/110v-6v, DC 3V