| Model | CST-50 |
| Diameter of the Screen | 200mm |
| Magnification of the instrument | 50X |
| Objective magnification | 2.5X |
| Working table square shape | 110x125mm |
| Diameter of round worktable | 90mm |
| Diameter of working screen | 70mm |
| Stroke of working table |
Longitude: ±10mm,Latitude: ±10mm, Rise and fall: ±12mm |
| Eye-field diameter | 3.8mm |
| Working distance | 22.89mm |
| Scope of revolving of the worktable | 360° |
| Power supply | 220V, 60HZ,150W |
| Weight | 18kg |