Item | Specification | BS-2021B | BS-2021T |
Optical System | Infinite Optical System | ● | ● |
Viewing Head | Seidentopf Binocular Head, Inclined at 30°, 360° Rotatable, Interpupillary Distance 48-75mm | ● | |
Seidentopf Trinocular Head, Inclined at 30°, 360° Rotatable, Interpupillary Distance 48-75mm | ● | ||
Eyepiece | WF10×/18mm | ● | ● |
P16×/11mm | ○ | ○ | |
WF20×/9.5mm | ○ | ○ | |
WF25×/6.5mm | ○ | ○ | |
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 | ● | ● |
Stage | Double Layer Mechanical Stage 132×142mm/ 75×40mm | ● | ● |
Focusing | Coaxial Coarse & Fine Adjustment, Fine Division 0.004mm, Coarse Stroke 37.7mm per Rotation, Fine Stroke 0.4mm per Rotation, Moving Range 24mm | ● | ● |
Condenser | NA1.25 Abbe condenser with iris diaphragm and filter holder | ● | ● |
Illumination | LED illumination, Brightness Adjustable | ● | ● |
Halogen Lamp 6V/ 20W, Brightness Adjustable | ○ | ○ | |
Immersion oil | 5ml Immersion oil | ● | ● |
Optional Accessories | Phase Contrast Kit | ○ | ○ |
Dark Field Attachment (Dry/Oil) | ○ | ○ | |
Polarization Attachment | ○ | ○ | |
Rechargeable battery | ○ | ○ | |
0.5×, 1× C-mount adapter (connect camera to the trinocular head) | ○ | ||
0.37×, 0.5×, 0.75×, 1× reduction lens | ○ | ○ | |
Packing | 1pc/carton, 39.5cm*26.5cm*50cm, gross weight: 7kg | ● | ● |
![](https://img5.grofrom.com/www.bjbestscope.com/uploads/BS-2021-Sample-picture-1.png)
![](https://img5.grofrom.com/www.bjbestscope.com/uploads/BS-2021B-4.jpg)
BS-2021B
![](https://img5.grofrom.com/www.bjbestscope.com/uploads/mhg.png)
![](https://img5.grofrom.com/www.bjbestscope.com/uploads/pic-3.jpg)
![](https://img5.grofrom.com/www.bjbestscope.com/uploads/BS-2021-Sample-picture-2.png)
![](https://img5.grofrom.com/www.bjbestscope.com/uploads/BS-2021T-41.jpg)
BS-2021T