ECLIPSE Si

• Optical System

  • Uses Nikon’s CFI60 infinity-corrected optical design.

• Illumination

  • High-luminance white LED (Eco-illumination)

  • Built-in fly-eye lens for uniform field illumination

  • Supports up to two Ø45 mm filters

  • Light Intensity Management (LIM) system remembers brightness per objective

• Focusing

  • Coaxial coarse and fine focus knobs on both sides

  • Focus stroke: +2 mm upward / –13 mm downward

  • Coarse: 37.7 mm per rotation; Fine: 0.2 mm per rotation

  • Minimum reading (fine): 2 µm

  • Includes torque‑adjustment ring and a vertical stage stop to prevent over-focusing

• Eyepieces

  • Diopter-adjustable options:

    • E2‑CFI 10×, FOV 20 mm

    • E2‑CFI 15×, FOV 12 mm

    • CFI 10×, FOV 22 mm (for wide‑field tubes)

• Viewing Tubes

  • 45° inclined tube, adjustable eyepoint height (2 positions), pupillary distance: 50–75 mm

  • Available tube models:

    • EC‑T‑TB2 binocular

    • EC‑T‑TF2 trinocular (50:50 split with 0.55× relay lens in camera port)

    • Lower-angle / ergonomic variants: 25° tubes; 10°–30° tilting; extension up to 40 mm

• Nosepiece

  • Reversed‑type quintuple (5‑position) nosepiece built into the body

• Stage

  • Rectangular mechanical stage integrated into the body

  • Cross travel: 76 mm (X) × 52 mm (Y)

  • Specimen holder: 2‑slide (2L) configuration, with vernier calibration

• Objectives
  Typical CFI E‑Plan achromat lenses:

  • 4×, NA 0.10, W.D. 30 mm

  • 10×, NA 0.25, W.D. 7 mm

  • 40×, NA 0.65, W.D. 0.65 mm

  • 60×, NA 0.80, W.D. 0.30 mm

  • 100× Oil, NA 1.25, W.D. 0.23 mm

  • Phase‑contrast objectives (optional): DL 10×, LWD DL 20×, DL 40×, DL 100× Oil

• Condenser

  • Abbe condenser, NA 1.25, vertically adjustable and centerable

• Observation Modes

  • Brightfield

  • Phase contrast

  • Diascopic (transmitted‑light) fluorescence (with optional filter sliders)

  • Dark‑field

  • Simple polarizing observation

• Additional Features

  • Antifungal paint coating around the optical path to prevent fungus growth

  • ECO mode: auto shut-off of illumination after a set idle time; adjustable timeout

  • Status display: LCD shows magnification, brightness level, LIM status, etc.

  • Knob rotation direction indicator: shows which way to turn focus and brightness knobs

  • One-hand operation: focus knobs (both sides) and stage handle are close so you can focus and move stage simultaneously with one hand

  • Optional blue‑light blocking filter to reduce eye strain by filtering out the blue component of LED light

  • Vertical stopper prevents the stage from traveling too high and damaging slides/objective

  • Lightweight design: approx. 6.0 kg with binocular tube; 6.4 kg with trinocular

  • Power: Uses AC adapter input 100–240 V, output 5.0 VDC; max consumption ~5 W

• Optional Accessories

  • Phase-contrast slider sets (e.g. 10×–40× or 100×)

  • Diascopic‑fluorescence filter slider sets 

  • Dark-field slider

  • Simple polarizer and analyzer

  • Eye-level riser to raise eyepoint by up to 25 mm

  • Teaching head (face‑to‑face or side‑by‑side) for shared viewing

  • Object marker, eyepiece pointer, blue-light blocking filter

You can find complete, updated details on the manufacturer’s website:
[Visit Nikon official product page]

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Product information sourced from Nikon Microscopes. All trademarks are the property of their respective owners.