The Nikon Eclipse Si is a professional-grade LED upright microscope crafted for long‑term usability in student labs, schools and colleges, chemistry and science laboratories, nursing/medical/engineering colleges, industrial R&D, and research centers across India, Asia, Africa, Europe, and the USA. Featuring an ergonomic low-stage design, intuitive Light Intensity Management (LIM), and supremely comfortable imaging, it's perfect for institutions looking to buy Eclipse Si in bulk as educational lab equipment for schools, science equipment for students, or affordable export-quality lab microscopes. With wide-format CFI60 optics and options spanning brightfield, phase contrast, fluorescence, darkfield, and simple polarization, it's recognized as one of the best microscopes for students and professionals.
Pair the Eclipse Si with other Olympus/ESAW microscope solutions like the Olympus CX‑23 Upright Microscope or explore more in our full Olympus Collection.
Technical Specifications
| Specification |
Details |
| Main Body |
ECLIPSE Si |
| Optical system |
CFI60 infinity optical system (microscope.healthcare.nikon.com) |
| Illumination |
High‑luminescent LED (Eco‑illumination) with built‑in fly‑eye lens, supports two Ø45 mm filters, includes LIM |
| Focusing |
Coaxial coarse/fine (both sides), cross‑roller guideStroke: Up 2 mm / Down 13 mm; Coarse: 37.7 mm/rev; Fine: 0.2 mm/rev; Min read: 2 µm; torque ring & stage stopper |
| Eyepieces (FOV, mm) |
Diopter-adjustable:- E2‑CFI 10× (20) ×2- E2‑CFI 15× (12) ×2- CFI 10× (22) ×3 |
| Tubes |
Inclination 45°; pupillary distance 50–75 mm; eye-height adjustable (binocular & trinocular F2/C series) |
| Nosepiece |
Reversed quintuple nosepiece (inside body) |
| Stage |
Rectangular mechanical with 2L holder & vernier; travel 76 × 52 mm |
| Objectives |
CFI E Plan Achromat:4× (0.10/30 mm), 10× (0.25/7 mm), 40× (0.65/0.65 mm), 60× (0.8/0.3 mm), 100× Oil (1.25/0.23 mm); Phase contrast variants available |
| Condenser |
Abbe NA 1.25; vertical & centerable; diaphragm included |
| Observation methods |
Brightfield, phase contrast, diascopic fluorescence, dark‑field, simple polarization |
| Fungus-proof treatment |
Antifungal paint around optics |
| Power supply |
AC adapter 100–240 VAC, 50–60 Hz, 5 W max |
| Weight |
Approx. 6.0 kg (binocular); 6.4 kg (trinocular) |
| Catalog Number |
ECLIPSE Si |
| Quantity per case |
1 Unit |
Use Case Scenarios
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Students & Schools: Ideal for histology and biology classes—observe cells, tissues, and microorganisms with clarity.
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Chemistry & Science Labs: Examine crystal formations, precipitates, or reaction patterns across magnifications.
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Medical/Nursing/Engineering Colleges: Supports cytology, pathology training, and quality assessment with ease.
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Industrial Labs & Research: Enables brightfield, fluorescence, and polarization for material science, pharma QC, or biotech workflows.
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Global Procurement: Bulk‑ready and competitively priced for institutions in India, Africa, Asia, Europe, and the USA.
