Description
MT8100EH Halogen Trinocular Incident/Transmitted Light Brightfield Metallurgical Microscope is a versatile inspection system designed for laboratories that require both reflected-light and transmitted-light capability in a single instrument. Equipped with dual 6V/30W halogen Köhler illumination systems, the MT8100EH delivers strong, even, and controllable lighting whether inspecting polished surfaces, grain structures, coatings, or metallographic cross-sections. Its high-performance Plan Epi infinity-corrected objectives — 5×, 10×, 20×, and 50× — ensure sharp, high-contrast imaging across a wide magnification range. Supported by Meiji Techno’s optical engineering, the MT8100EH provides dependable brightfield performance for a broad spectrum of materials analysis applications.
Built for precision and durability, the MT8100EH features a ceramic-coated flat-top stage with smooth 100 × 100 mm X-Y travel, allowing effortless navigation across large or highly detailed samples. The Siedentopf binocular head with 30° inclination offers comfortable viewing for long inspection sessions, while the microscope’s heavy-duty Japanese construction ensures mechanical stability and long-term reliability. The system includes an auto-sensing 100–240 V power supply, making it suitable for any global laboratory environment. With its combination of dual illumination, robust optical performance, and ergonomic design, the MT8100EH is an ideal choice for metallography labs, quality-control departments, materials-science facilities, and industrial R&D teams seeking a reliable all-in-one brightfield inspection solution.
What the MT8100EH Metallurgical Upright Brightfield Microscope Is Designed For:
The MT8000EH metallurgical upright Brightfield microscope equipped with incident (reflected) light and transmitted (bottom) light is designed to examine both the surface structure and the internal features of metals, alloys, semiconductors, coatings, ceramics, and other solid materials. Since most metallurgical specimens are opaque, incident light is primarily used, while transmitted light becomes valuable when working with thin sections, polished cross-sections, or transparent mounting media.
Incident Brightfield (Reflected Light) – For Opaque Materials
Incident Brightfield illuminates the specimen from above, allowing light to reflect off the surface and into the objective. This method is ideal for:
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Microstructure evaluation (grain size, phases, porosity, inclusions)
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Inspection of coatings and plating
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Surface defect detection such as cracks, pits, scratches, or contamination
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Weld and heat-affected zone assessment
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Failure and materials analysis in industrial and research settings
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Quality verification of machining, polishing, and surface treatments
Because the light interacts directly with the surface, this illumination reveals critical details about texture, uniformity, and structural integrity.
Transmitted Brightfield (Light From Below) – For Thin or Transparent Samples
Transmitted Brightfield directs light through the sample, making it suitable for specimens that are sufficiently thin or inherently transparent. It is used for:
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Thin metallographic cross-sections
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Resin-mounted or semi-transparent samples
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Foils, films, and powdered metals
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Internal inclusion and void detection
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Detailed internal structural studies not visible with reflected light
This illumination mode complements incident light by providing visibility into internal composition rather than surface features alone.
Why Both Illumination Modes Matter
By offering both incident and transmitted Brightfield illumination, a metallurgical upright microscope becomes a more versatile analytical tool. It can reveal the surface condition, grain structure, coatings, and defects using reflected light, while also enabling the examination of internal layers, thin sections, and embedded features using transmitted light. This dual capability is essential for applications in metallurgy, manufacturing QA, materials research, and failure analysis, where understanding both surface and internal structure is crucial for accurate evaluation.
The MT8000 Series features include:
- Computer Aided Design
- Ergonomically positioned controls
- Comfortable Siedentopf viewing head
- 30W Vertical Koehler Illuminator with auto voltage sensing power supply
- 30W Transmitted Koehler Illuminator with auto voltage sensing power supply
- Brightfield Reflected Light and Brightfield Transmitted Lightobservation modes
- Optional Ergonomic binocular viewing head available
• MT8100EH: Ergonomic Trinocular Brightfield and Simple Polarization Metallurgical Compound , eyepieces adjustable vertically from 10 to 50 degrees with Incident (Reflected) and Transmitted light Brightfield Observation and ∞ Infinity Corrected optical system F-200MM. Vertical Kohler 6V 30W Halogen, Transmitted Kohler 6V 30W Halogen illumination with quintuple nosepiece and auto voltage sensing power supply
Includes:
VIEWING HEADS
Model MA815 is the Siedentopf-type binocular head and Model MA816 is the trinocular head for camera integration. Each head has the eyetubes inclined at 30° with the left eyetube having graduated diopter settings. The interpupillary distance is adjustable between 53mm – 75mm. An 80/20 beamsplitter for the trinocular tube can be engaged for photo work. The optional Ergonomic Viewing Head has the inclination adjustable from 10 to 50 degrees to fit any size user.
• MA957: Ergonomic tilting binocular head – Eyepieces Adjustable vertically from 10 to 50 degrees, Siedentopf type, Interpupillary adjustment 53mm to 75mm (30.0mm I.D eyetube)
• MA958: Photo / Video attachment with sliding 80/20 beam-splitter. For use with video or digital cameras when MA957 ergonomic head is used
EYEPIECES
10X Super Widefield High Eyepoint eyepieces F.N.22 are standard, and 15X and 20X eyepieces are available as an option. A Super Widefield High Eyepoint 10X focusable eyepiece that accepts 25mm reticules is also available.
• MA817 (x 2): SWH10X Widefield high eyepoint eyepiece, Field No. 22, tube O.D. 30.0 mm
• MA906 (x 2): Eyeshield for MA817 SWH 10X eyepiece
OBJECTIVES
Meiji Techno offers an assortment of Plan Epi Infinity Corrected objectives for Brightfield work. The smooth-operating, ball bearing mounted, quintuple nosepiece provides effortless objective changes.
• MA870: Plan Epi Objective 5X, N.A. 0.10, W.D. 20.9mm, F.N. 24, ∞ Infinity Corrected
• MA871: Plan Epi Objective 10X, N.A. 0.25,W.D. 7.7mm, F.N. 24, ∞ Infinity Corrected
• MA872: Plan Epi Objective 20X, N.A. 0.40,W.D. 5.6mm, F.N. 24, ∞ Infinity Corrected
• MA873: Plan Epi Objective 50X, N.A. 0.75, W.D. 0.38mm, F.N. 24, ∞ Infinity Corrected
STAGE
Ceramic coated left or right-handed, flat top stage measures 191mm x 126mm with x-y travel: 100mm(X) x 100mm(Y). Ergonomically positioned coaxial drop down controls.
• MA942: Ceramic coated flat-top stage, 191mm x 126mm, 100mm x 100mm X-Y movement with right hand drop-down coaxial controls and 94.5mm diameter clear glass stage plate
ILLUMINATION
Powerful 30 watt halogen transmitted and incident reflected illumination systems provides enhanced image quality and brightness for the observation of metallurgical specimens.
• MA927: Vertical Koehler Illuminator, 6V 30W Halogen lamp, with clear blue, clear green, ND 25, Neutral Density filter, and polarizing filters in metal mounts 100V-240V
• MA927/05: Transformer for MA927 in separate case (Input 100V-240V, Output 6V 30W)
• MA475/05: Blue clear filter, 20mm diameter filter in metal mount, fits 25mm filter slot
• MA476: Green clear filter, 20mm diameter filter in metal mount, fits 25mm filter slot
• MA774: N.D. 50 Neutral Density filter, 20mm diameter filter in metal mount fits 25mm filter slot
• MA497: Polarizing filter, 20mm diameter filter in metal mount, fits 25mm filter slot
• MA910/05: Substage condenser with iris diaphragm, dovetail mount
• MA326: Bulb 6V 30W Halogen lamp (Incident & Transmitted Halogen models)(Factory Installed)
• MA327: Fuse 3A for transmitted light Halogen illuminator ( Factory Installed)
• MA809/10: Removable AC Electric cord with plug for 115V models
• MA701/05: Dust Cover for all MT8000 series models
• Manual: MT8000 Meiji Techno Instruction Manual
• Warranty: Limited Lifetime Warranty Card
PHOTOMICROGRAPHY
Meiji Techno offers a broad range of digital video cameras which offers excellent sensitivity, high resolution and a wide dynamic range for the most demanding brightfield and darkfield microscopy applications including clinical pathology and cytology, life sciences and geology. Some models has included software, that can preview and capture still shots and live videos to a PC or Mac with USB port or HDMI connectivity.
MT8100EH METALLURGICAL SERIES BROCHURE
(CLICK TO DOWNLOAD FULL BROCHURE)
Product Information:
• Manufactured: 100% MADE IN JAPAN
• Warranty: LIMITED LIFETIME WARRANTY
• Customer Support: 1-(800) 832-0060 (U.S.A Based)
Package Information:
• Weight: 33 lbs (9.0 kg)
• Box Size: 16 x 14 x 21 inches
• Footprint: 263mm (D) x 176mm (W)
• Binocular head type: 424.5mm(D) x 471 mm (H) x 210 mm(W) (9.0 kg)( 33.0 lbs)
• Trinocular head type: 424.5 mm(D) x 526 mm(H) x 210 mm(W) (9.7 kg)(35.0 lbs)
• Binocular Ergonomic head type: 424.5mm (D) x 471 mm (H) x 210 mm (W) (9.0 kg)( 33.0 lbs)
• Trinocular Ergonomic head type: 424.5 mm (D) x 550 mm(H) x 210 mm (W) (9.7 kg)(35.0 lbs)
