NMET-I11
| Optical System | Infinite Optical System |
| Head | Siedentopf Trinocular viewing head,inclined at 30°, Interpupillary 48mm-75mm |
| Eyepiece | EW10×/22 |
| EW10×/20 Eyepiece with scale of cross hair | |
| Objective | Infinite LWD Plan Achromatic Objective 5x/0.12/∞/-(BF/DF) LWD 10mm |
| Infinite LWD Plan Achromatic Objective 10x/0.25/∞/-(BF/DF) LWD 10mm | |
| Infinite LWD Plan Achromatic Objective 20x//0.4/∞/0(BF/DF) LWD 5mm | |
| Infinite LWD Plan Achromatic Objective 50x/0.75/∞/0(BF/DF) LWD 1.3mm | |
| Infinite LWD Plan Achromatic Objective 100x/0.90(Dry)/∞/0(BF) LWD 0.7mm | |
| Lamp House Adjustment Objective | |
| Focusing | Coaxial coarse and fine adjustment, fine division 2μm |
| Nosepiece | Backward quintuple nosepiece |
| Stage | Double layer mechanical stage 226×178mm, Moving range 40mm×40mm |
| Stage Φ20,Φ30,Teardrop | |
| Illumination | 12V/50W Halogen Lamp,Center and Brightness Adjustable |
| Kohler Incident Light | |
| Polarizer and analyzer | |
| Build-in Green,Blue,Yellow,Gray and ground glass | |
| Micrometer | Scale 0.01mm |
