| Item | Specification | BM-500 | BM-500T | BM-502B | BM-502T | BM-503B | BM-503T |
|---|
| Observation Head | Binocular head 360° rotating & 30° inclined |  | | | | | |
| Trinocular head 360° rotating & 30° inclined | | | | | | |
| Wide-field Eyepiece | WF10X-18mm | | | | | | |
| WF15X-13mm |  | | | | | |
| Nosepiece | Quadruple nosepiece | | | | | | |
| Quintuple nosepiece | | | | | | |
| Achromatic Objectives | 4X / 0.10 | | | | | | |
| 10X / 0.25 | | | | | | |
| 40XR / 0.65 | | | | | | |
| 100XR(oil) / 1.25 | | | | | | |
| 60XR / 0.85 | | | | | | |
| 20XR / 0.40 | | | | | | |
| Semi-plan Achromatic Objectives | 4X / 0.10 | | | | | | |
| 10X / 0.25 | | | | | | |
| 40XR / 0.65 | | | | | | |
| 60XR / 0.85 | | | | | | |
| 100XR(oil) / 1.25 | | | | | | |
| Plan Achromatic Objectives | 4X / 0.10 | | | | | | |
| 10X / 0.25 | | | | | | |
| 40XR / 0.65 | | | | | | |
| 60XR / 0.85 | | | | | | |
| 100XR(oil) / 1.25 | | | | | | |
| Stage | Built-in mechanical stage Size 132mm X 145mm Moving range 50mm X 76mm | | | | | | |
| Condenser | N.A.1.25 Abbe condenser with iris diaphragm & filter holder | | | | | | |
| Illumination | Halogen bulb 20W/6V Adjustable intensity University power 85V-265V | | | | | | |
| Focusing System | Coaxial focusing system with built-in tension adjustment and focus stop | | | | | | |
| Field diaphragm | Field diaphragm on base lens | | | | | | |
| Packing | Each set in a foam in a carton | | | | | | |
| REF number | | 44 00 15 | 44 00 18 | 44 00 19 | 44 00 21 | 44 00 22 | 44 00 23 |
| Brochure | | | | | | | |
