| Item | Specification | BS-3001A | BS-3001B | BS-3001C |
| Viewing Head | Upright Binocular Viewing Head, Interpupillary Distance 55-75mm, diopter adjustment ±5dp on left ocular-tube, Tube diameter 23.2mm | * | * | * |
| Eyepiece | WF5×/20mm | ○ | ○ | ○ |
| WF10×/20mm | * | * | * |
| WF15×/15mm | ○ | ○ | ○ |
| WF20×/10mm | ○ | ○ | ○ |
| Objective | 1×, Working distance 57mm | ○ | ○ | ○ |
| 2×, Working distance 80mm | * | * | * |
| 3×, Working distance 61mm | ○ | ○ | ○ |
| 4×, Working distance 57mm | ○ | ○ | ○ |
| 6×, Working distance 66mm | ○ | ○ | ○ |
| Illumination | Natural illumination, Natural light | * | | |
| Incident illumination, Incandescent lamp 12V10W | | * | |
| Incident & transmitted illumination, Incandescent lamp 12V10W | | | * |
| Working Plate | Φ60 White&black Plate | * | * | |
| Φ95 Frosted glass and White&Black Plate | | | * |
| Power supply | 110V/60HZ or 220V/50HZ. | * | * | * |
| Package | 4pcs/carton, 68cm*31cm*38cm, Gross weight 11kg, Net weight 7kg | * | * | * |
Complaint
