| Model | SMZ-171-BP | SMZ-171-BLED | SMZ-171-TP | SMZ-171-TLED |
| Observation tube | Binocular head | Binocular head | Trinocular head | Trinocular head |
| Optical system | Greenough |
| Inclination | 45° inclined |
| Trinocular light split | - | - | Fixed 50:50 | Fixed 50:50 |
| Interpupillary distance | 52-75mm |
| Diopter adjustment | On both eyepieces, +/- 5 diopter |
| Eyepieces | Widefield N-WF10X/23mm with diopter adjustment |
| Objectives system | Zoom, ratio 6.7:1 |
| Objectives | 0.75X~5X |
| Working distance | 110mm |
| Stand type | Pole type stand without illumination | Pole type stand with transmitted illumination | Pole type stand without illumination | Pole type stand with transmitted illumination |
| Head holder | For Ø32mm column and Ø76mm head |
| Focus mechanism | Coarse focusing system with tension adjustment |
| Focusing stroke | 49mm |
| Incident illumination | - | LED 3W with intensity control | - | LED 3W with intensity control |
| Transmitted illumination | - | LED 3W with reflector and intensity control | - | LED 3W with reflector and intensity control |
| Illumination features | - | Transmitted light with tilting reflector for oblique illumination | - | Transmitted light with tilting reflector for oblique illumination |
| Transformer | - | External | - | External |
| Power supply | - | 100-240V (CE) | - | 100-240V (CE) |
| Accessories included | Dust cover, black/white stage plate | Dust cover, black/white and frosted stage plates | Dust cover, black/white stage plate | Dust cover, black/white and frosted stage plates |
| Dimensions LxWxH | 303x239x370mm | 303x239x405mm | 303x239x370mm | 303x239x405mm |
| Base | 303x239mm |
| Column/Arm | Height 290mm, Ø32mm |
| Weight Net | 5.45kg | 5.95kg | 5.7kg | 6.2kg |
| Standard contrast technique | Brightfield |
| Polarization | - | Optional add-on | - | Optional add-on |
| Darkfield | - | Optional add-on | - | Optional add-on |
