| Vertex Power | Range | +20diopterto-20dioper |
| Step | 0.12D | |
| Prismatic Power | Range | 5 prism diopter |
| Step | 1 diopter | |
| Cylindnical Axis | Range | 0 to 180 degrees |
| Step | 1 degrees | |
| Lenses Accommodated | Diameter 20mm to 80mm | |
| Eyepiece Focusing | -5D to +5D | |
| Bulb | 220V/110V-6V Direct current 3V | |