VMM-D series Semi-auto Video Measuring Microscope, is an integrated high-magnification, micron-industry-aimed measuring instruments developed by DG-YIHUI.

| Model | VMM-3020D | VMM-4030D | VMM-5040D |
| Stroke (X*Y*Z, mm) | 300*200*200 | 400*300*200 | 500*400*200 |
| Load Capacity | approx. 15 kg | approx. 20 kg | approx. 30 kg |
| Dimension(L*W*H,mm) | 670 x 660 x 950 | 720*950*1020 | 800*1040*1020 |
| Machine Weight(kg) | 230 | 315 | 500 |
| Accuracy E1* | Ex, y ≤ (2.5+L/200)μm | ||
| Accuracy E2* | Exy ≤ (3.5+L/300)μm | ||
| Scale Resolution | 0.5 μm | ||
| Microscope | 1.3 MP color CCD Camera | ||
| Camera | |||
| Optical system | Infinity-corrected optical system | ||
| Objective | standard | optional | |
| PL 5X,10X,20X,50X | PL 2.5X, 100X | ||
| Nosepiece | Intilted quintuple nosepiece for bright field | ||
| Coaxial coarse and fine adjustment, coarse adjustment distance 32mm, precision of fine adjustment: 0.002mm, | |||
| Focus System | with tense adjusting device to prevent gliding. | ||
| 6V 30W/12V 50W halogen and brightness adjustable. | |||
| Illumination System | Integrated field diaphragm, aperture diaphragm and pullerty polarizer | ||
| Equipped with frosted glass, yellow/green/blue filters | |||
| Video Magnification | 140~1400x(Objective* 1/2’’ CCD Camera) | ||
| Work-piece Height Limit | 200mm | ||
| Power Supply | AC110V/60Hz, 220V/50Hz | ||










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