Specifications
| Optical system | Finity＆infinity achromatic optical system |
| Observation tube | Binocular head , 30°inclined, 54~75mm interpupillary distance,±5 degrees diopter control |
| Trinocular head,30°inclined,(with 0/100 or 20/80 light splits) | |
| Eyepiece | High eyepoint wide field plan eyepiece PL10X/18mm |
| High eyepoint wide field plan eyepiece PL10X/20mm | |
| Objectives | Achromatic objective 4X、10X、40X（S）、100X（S、Oil） |
| Plan achromatic objective 4X、10X、20X、40X（s）、100X（S、Oil） | |
| Infinity plan achromatic objective 4X、10X、20X、40X（s）、100X（S、Oil） | |
| Nosepiece | Backward quadruple nosepiece |
| Backward quintuple nosepiece | |
| Focusing
adjustment |
Coaxial coarse and fine focusing adjustment, with limited and tension adjustment.
coarse adjustment range: 28mm,fine adjustment precision：0.002mm.low position design for single hand operating. |
| Stage | Hard coated ,low position coaxial mechanical stage with 150×140mm size
and 76×50mm travel range. with double clips. |
| Condenser
system |
Critical illumination, rack & pinion focusable N.A.1.25 condenser, fixed center. |
| Koehler illumination, rack &pinion focusable N.A.1.25 condenser, adjustable center. | |
| Illuminator | Variable voltage 90V～240V,halogen 6V/20W with intensity control |
| Variable voltage 90V～240V, 3W LED lamp with intensity control | |
| Photography
adapter |
3.2x photo eyepiece ,photo tube（with PK mount） |
| Video adapter | 0.35X CTV |
| 0.5X CTV | |
| Other options | Phase contrast sliders for condenser（use with phase contrast objective） |
| Dark field slider for condenser | |
| Simple polarization (with analyzer and polarizer) |
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