Eyepiece focusing range | ±5D |
The top point dioptre measuring range | -25D ~ +25D |
The minimum measuring square value | 0.125D |
The shuttle lens measuring range | 10△ |
The shuttle lens square value | 1△ |
The cylinder lens axial range | 0-180° |
The cylinder lens axial square value | 1° |
The maximum diameter of the measured lenses | 100mm |
Lamp of illumination | AC 220v/110v-6v DC 3V |