| Model | L2020A | L2020B |
| Eyepiece | Wide field WF10X(Φ18mm) |
| Objective | Plan achromatic objectives with long working distance (no cover
glass) PL 5X/0.12 | Plan achromatic objectives with long working distance (no cover
glass) PL 5X/0.12 |
| Plan achromatic objectives with long working distance (no cover
glass) PL L10X/0.25 | Plan achromatic objectives with long working distance (no cover
glass) PL L10X/0.25 |
| Plan achromatic objectives with long working distance (no cover
glass) PL L40X/0.60 | Plan achromatic objectives with long working distance (no cover
glass) PL L20X/0.40 |
| Plan achromatic objectives with long working distance (no cover
glass) PL L60X/0.75 (Spring) | Plan achromatic objectives with long working distance (no cover
glass) PL L40X/0.60 (Spring) |
| | Plan achromatic objectives with long working distance (no cover
glass) PL L60X/0.75 (Spring) |
| Eyepieces tube | Trinocular, Inclination of 30˚, (Analyzer with field diaphragm to
switch) |
| Vertical illumination unit | 6V 20w, halogen lamp, adjustable control. |
| Vertical illumination with field diaphragm, aperture diaphragm and
polarizer,(R,B,G)filter and frosted filter |
| Focus system | Coaxial coarse/fine focus system, with tensional adjustable and up
stop, minimum division of fine focusing: 2μm. |
Nosepiece | Quadruple(Backward ball bearing inner locating) | Quintuple(Backward ball bearing inner locating) |
| Stage | Double layer mechanical (Size:160mmX140mm,movingrange:75mmX50mm) |
| Vertical illumination unit | Abbe condenser NA.1.25 Rack & pinion adjustable |
| (B,G)filter and Frosted filter |
| Collector for halogen lamp |
| 6V 20w halogen lamp, adjustable control. |
