| Model | NSZ-606 | |
| Drawing Tube | Binocular Viewing Head, Inclined at 45° | ● |
| Trinocular Viewing Head, Inclined at 45° | ○ | |
| Eyepiece | Extra wide field eyepiece EW10×/22 | ● |
| WF15× | ○ | |
| WF20× | ○ | |
| Zoom Objective | 0.8×-5× | ● |
| Zoom Ratio | 6.3:1 | ● |
| Working Distance | 115mm | ● |
| Interpupillary Distance | 55-75mm | ● |
| Auxiliary objective | 0.5× | ○ |
| 2× | ○ | |
| Glass Insert | Glass Insert, Diameter 100mm | ● |
| Illumination | Incident Illumination 100V-240V/ LED | ● |
| Transmitted Illumination 100V-240V/ LED | ● | |
| Photo Attachment | ○ | |
| Video Attachment | ○ |