| Item | Specification | BS-2040B | BS-2040T | BS-2040BD |
| Optical System | Infinite Optical System | * | * | * |
| Viewing Head | Seidentopf binocular head, 30° inclined, Interpupillary 48-75mm | * | | |
| Seidentopf trinocular head, 30° inclined, Interpupillary 48-75mm | | * | |
| Built-in 3.0MP digital camera with ScopeImage 9.0 Software; Binocular Head, Inclined at 30°, Interpupillary Distance 48-75mm | | | * |
| Eyepiece | Wide Field Eyepiece WF 10×/18mm | * | * | * |
| Extra Wide Field Eyepiece EW10×/20 with Diopter Adjustment | ○ | ○ | ○ |
| Objective | Infinite Semi-plan Achromatic Objectives 4×, 10×, 40×, 100× | * | * | * |
| Infinite Plan Achromatic Objectives 2×, 4×, 10×, 20×, 40×, 60×, 100× | ○ | ○ | ○ |
| Nosepiece | Backward Quadruple Nosepiece | * | * | * |
| Backward Quintuple Nosepiece | ○ | ○ | ○ |
| Stage | Double Layers Mechanical Stage 140mm×140mm/ 75mm×50mm | * | * | * |
| Left hand operation Double Layers Mechanical Stage 140mm×140mm/ 75mm×50mm | ○ | ○ | ○ |
| Condenser | Sliding-in Centerable Condenser NA1.25 | * | * | * |
| Focusing | Coaxial Coarse & Fine Adjustment, Fine Division 0.002mm, Coarse Stroke 37.7mm per Rotation, Fine Stroke 0.2mm per Rotation, Moving Range 20mm | * | * | * |
| Illumination | 1W S-LED Lamp, Brightness Adjustable | * | * | * |
| 6V/20W Halogen Lamp, Brightness Adjustable | ○ | ○ | ○ |
| Optional accessories | Phase Contrast Kit | ○ | ○ | ○ |
| Dark Field Attachment | ○ | ○ | ○ |
| YX-2 Epi-fluorescent Attachment | ○ | ○ | ○ |
| FL-LED Epi-fluorescent Attachment | ○ | ○ | ○ |
| Package | 1pc/carton, 35cm*35.5cm*55.5cm, gross weight: 12kg | * | * | * |
Complaint
