MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator
MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator - Image 2
MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator - Image 3
MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator - Image 4
MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator - Image 5
MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator - Image 6
MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator - Image 7
MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator - Image 8

MT7530EH, Metallurgical Ergonomic Trinocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler 6V 30W Halogen Incident Illuminator

MT7320EH Halogen Ergonomic Binocular BF/DF Metallurgical Microscope is built for precise reflected-light analysis, delivering high-contrast imaging for polished metals, alloys, and heat-treated components. Its powerful halogen vertical illuminator supports both brightfield and darkfield observation, revealing grain structures, inclusions, coatings, and micro-defects with exceptional clarity. The system is equipped with a full range of Infinity-Corrected Plan Epi objectives (5×, 10×, 20×, 50×), engineered for flat, distortion-free imaging and excellent numerical apertures. These objectives provide true-color accuracy and sharp detail across every magnification, making them essential for reliable metallurgical examination.

Designed with user comfort in mind, the MT7320EH features an ergonomic bilateral head that adjusts to natural viewing angles, reducing fatigue during long inspection sessions. Its ceramic-coated mechanical stage ensures smooth, precise X-Y movement and stable specimen control—crucial when working at higher magnifications with the Plan Epi objectives. Constructed with Meiji Techno’s signature Japanese craftsmanship, the MT7320EH delivers long-term optical stability, durability, and consistent performance. Whether used in industrial quality control, research labs, or educational settings, its combination of robust engineering and high-quality objectives makes it a dependable instrument for accurate, repeatable metallurgical analysis.

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Description

The MT7530EH Halogen Ergonomic Trinocular BF/DF Metallurgical Microscope is a powerful reflected-light inspection system designed for professionals who need precise, high-contrast imaging of polished materials. Engineered with a robust halogen vertical Köhler illuminator, the MT7530EH delivers bright, evenly distributed illumination for both brightfield and darkfield observation—making it ideal for analyzing grain boundaries, inclusions, coatings, and heat-treated surfaces. Its infinity-corrected Plan Epi objectives provide crisp, color-accurate views across multiple magnifications, while the ceramic-coated stage and smooth 100×100 mm X-Y travel ensure stable, repeatable specimen positioning during detailed inspections.

Built for durability and comfort, the MT7530EH features an ergonomic Siedentopf binocular head with a relaxed 30° viewing angle that helps minimize fatigue during long sessions. The heavy-duty Japanese-engineered frame enhances stability at higher magnifications, and the auto-sensing power supply supports seamless use in various lab environments. Reliable, precise, and designed for demanding industrial and academic applications, the MT7530EH is a trusted solution for metallographers, quality-control engineers, and researchers seeking dependable brightfield/darkfield performance in a compact, professional instrument.

Brightfield Observation (BF) — General Surface & Microstructure Analysis

In Brightfield mode, light reflects directly off the sample’s surface, producing a clear image of:

  • Grain structures

  • Phase boundaries

  • Heat-affected zones

  • Inclusions and impurities

  • Coating thickness

  • General surface morphology

Brightfield is ideal for standard metallurgical inspection and material comparison.

Darkfield Observation (DF) — Defect & Edge Enhancement

Darkfield uses angled illumination so only light scattered by the sample enters the objective. This dramatically enhances contrast and reveals:

  • Scratches, pits, cracks

  • Surface defects or contamination

  • Edges, boundaries, tool marks

  • Particles or inclusions not visible in BF

  • Subtle texture variations

Darkfield is especially effective for inspection of polished or etched samples where fine defects must be detected quickly.

Common Industrial & Laboratory Applications

  • Quality control in manufacturing

  • Failure analysis of components and parts

  • Metallography (grain size, phases, microstructures)

  • Welding and heat-treatment evaluation

  • Coating and plating thickness inspection

  • Semiconductor & PCB inspection

  • Surface finish and wear assessment

  • Material research and development

The MT7500 Series features include:

  • Computer Aided Design
  • Ergonomically positioned controls
  • Comfortable Siedentopf viewing head
  • 50W Vertical Koehler Illuminator with auto sensing power supply
  • Incident Light Brightfield/Darkfield and Simple Polarized Light observation modes
  • Optional Ergonomic binocular viewing head available

VIEWING HEADS

• MA957: Ergonomic tilting binocular head – Adjustable vertically from 10 to 50 degrees, Siedentopf type, Interpupillary adjustment 53mm to 75mm, graduated diopter on left eyetube (30.0 mm I.D. eyetube)
• MA958: Trinocular 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/Darkfield observation.  The smooth-operating, ball bearing mounted, quintuple nosepiece provides effortless objective changes.

• MA923: Plan Epi Objective BD5X, N.A. 0.10, W.D. 17.0mm, F.N. 22, ∞ Infinity Corrected
• MA924: Plan Epi Objective BD10X, N.A. 0.25,W.D. 7.48mm, F.N. 22, ∞ Infinity Corrected
• MA925: Plan Epi Objective BD20X, N.A. 0.40, W.D. 5.20mm, F.N. 22, ∞ Infinity Corrected
• MA926: Plan Epi Objective BD50X, N.A. 0.75, W.D. 0.38mm, F.N. 22, ∞ Infinity Corrected

 

ILLUMINATION

Powerful 50 watt halogen illumination provides enhanced image quality and brightness for the observation of metallurgical specimens.

• MA928: Vertical LED BF/DF/POL Koehler illuminator, 12V 50W Halogen lamp with clear blue, clear green, ND 50, neutral density filter, and polarizing filter in metal mounts 100V~240V (powered by automatic voltage sensing transformer built into MT7500 Series Stand)

• MA275/25: Blue clear filter, 19.5mm diameter filter in metal mount, fits 30mm filter slot


• MA275/30: Green clear filter, 19.5mm diameter filter in metal mount, fits 30mm filter slot


• MA275/50: N.D.50 Neutral Density filter, 19.5mm diameter filter in metal mount, fits 30mm filter slot

MA275/45 ND25 Neutral Density Filter 19.5mm in Metal Mount, Fits 30mm Filter Slot
• MA959: Polarizing filter, 19.5mm diameter filter in metal mount. Fits 30mm filter slot

• MA275/05: Spare bulb, 12V, 50W Halogen lamp


• MA327: Fuse 3Amp

STAGE

Ceramic coated left or right-handed, flat top stage measures 191mm x 126mm and travels: 100mm(X) x 100mm(Y). Ergonomically positioned coaxial drop down controls.
• MA941: Ceramic coated flat-top stage, 191mm X 126mm, 100mm X 100mm X-Y movement with right hand drop-down coaxial controls

• MA809/10: Removable AC Electric cord with plug for 115V models


• MA709: Dust Cover for MT7500 series models
• Manual: MT7500 Meiji Techno Instruction Manual
• Warranty: Limited Lifetime Warranty Card

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 (14.9 kg)
• Box Size: 17 x 14 x 27 inches
• Footprint: 263mm (D) x 176mm (W)
• Binocular head type: 477.5 mm(D) x 471mm (H) x 210mm(W) (8.9kg)( 33.30 lbs.)
• Trinocular head type: 477.5 mm(D) x 526mm(H) x 210mm(W) (9.6kg)(35.0 lbs.)
• Ergonomic Binocular head type: 477.5mm(D) x 471mm (H) x 210mm(W) (8.9kg)( 33.30 lbs.)
• Ergonomic Trinocular head type: 477.5 mm(D) x 550mm(H) x 210mm(W) (9.9kg)(36.0 lbs.)

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.

OPTIONAL CAMERA ACCESSORIES

CAMERAS (OPTIONAL)
Model HD1000-LITE HD1500T HD1500MET HD1500MET-AF HD4500K
Type HDMI/USB 2.0 HDMI/USB 2.0Basic Measurement Features HDMI/USB 2.0Metrics Measurement Features HDMI/USB 2.0Auto-focusing/Z stack & stitching HDMI/USB/SD/LAN/WiFi
Version Color Color Color Color Color
Mega Pixels 5MP 2-6MP 2-6MP 2-6MP 8MP
Resolution 2592 x 1944 3264 x 1840 Static1920 x 1080 Dynamic 3264 x 1840 Static1920 x 1080 Dynamic 3264 x 1840 Static1920 x 1080 Dynamic 3840 x 2160
Frame Rate (FPS) 15fps by HDMI15fps by USB 2.0 60fps by HDMI30fps by USB 2.0 60fps by HDMI30fps by USB 2.0 60fps by HDMI30fps by USB 2.0 60fps by HDMI
Sensor 1/2.5″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS 1/1.8’’ CMOS
C-mount 0.3X 0.3X 0.3X 0.3X 0.3X
CAMERAS WITH MONITORS (OPTIONAL)
Model HD1000-LITE-M HD1500TM HD1500MET-M HD1500MET-M-AF HD4500K-M
Type HDMI/USB 2.0 HDMI/USB 2.0Basic Measurement Features HDMI/USB 2.0Metrics Measurement Features HDMI/USB 2.0Auto-focusing/Z stack & stitching HDMI/USB/SD/LAN/WiFi
Monitor Size 11.8″ 11.8″ 11.8″ 11.8″ 13.3”
Version Color Color Color Color Color
Mega Pixels 5MP 2-6MP 2-6MP 2-6MP 8MP
Resolution 2592 x 1944 3264 x 1840 Static1920 x 1080 Dynamic 3264 x 1840 Static1920 x 1080 Dynamic 3264 x 1840 Static1920 x 1080 Dynamic 3840 x 2160
Frame Rate (FPS) 15fps by HDMI15fps by USB 2.0 60fps by HDMI30fps by USB 2.0 60fps by HDMI30fps by USB 2.0 60fps by HDMI30fps by USB 2.0 30fps by HDMI30fps by USB
Sensor 1/2.5″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS 1/2.8″ CMOS 1/1.8” CMOS
C-mount 0.3X 0.3X 0.3X 0.3X 0.3X

MT7530EH METALLURGICAL SERIES BROCHURE

(CLICK TO DOWNLOAD FULL BROCHURE)

Components & Accessories – COMPOUND

     
Eyepieces Objectives Condensers Stage Plates Illuminators
thmb Filters Cameras
Motorized Focus
and Stage		 Micrometer Lenses Filters
 Bulbs Microscopy Cameras
C" Mounts/Camera Adapters  
C” Mounts/Camera
Adapters		 Fuses Carrying Cases

Additional information

Components & Accessories

Included:
• MT7530EH: Ergonomic Trinocular Metallurgical Brightfield /Darkfield Compound Microscope with eyepiece adjustable vertically from 10 to 50 degrees. Incident (Reflected) light BF/DF Observation with ∞ Infinity Corrected optical system F-200MM. Vertical Kohler 12V 50W Halogen and polarization with quintuple nosepiece and auto voltage sensing power supply
• MA957: Ergonomic tilting binocular head – Adjustable vertically from 10 to 50 degrees, Siedentopf type, Interpupillary adjustment 53mm to 75mm, graduated diopter on left eyetube (30.0 mm I.D. eyetube)
• MA958: Trinocular Photo/Video attachment with sliding 80/20 beam-splitter. For use with video or digital cameras when MA957 ergonomic head is used
• 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
• MA923: Plan Epi Objective BD5X, N.A. 0.10, W.D. 17.0mm, F.N. 22, ∞ Infinity Corrected
• MA924: Plan Epi Objective BD10X, N.A. 0.25,W.D. 7.48mm, F.N. 22, ∞ Infinity Corrected
• MA925: Plan Epi Objective BD20X, N.A. 0.40, W.D. 5.20mm, F.N. 22, ∞ Infinity Corrected
• MA926: Plan Epi Objective BD50X, N.A. 0.75, W.D. 0.38mm, F.N. 22, ∞ Infinity Corrected
• MA928: Vertical Koehler Illuminator, 12V 50W halogen lamp, with clear blue, clear green, ND 50 Neutral Density filter, and polarizing filter in metal mounts 100V-240V automatic sensing power supply
• MA275/25: Blue clear filter, 19.5mm diameter filter in metal mount, fits 30mm filter slot
• MA275/30: Green clear filter, 19.5mm diameter filter in metal mount, fits 30mm filter slot
• MA275/50: N.D.50 Neutral Density filter, 19.5mm diameter filter in metal mount, fits 30mm filter slot
• MA959: Polarizing filter, 19.5mm diameter filter in metal mount. Fits 30mm filter slot
• MA941: Ceramic coated flat-top stage, 191mm X 126mm, 100mm X 100mm X-Y movement with right hand drop-down coaxial controls
• MA275/05: Spare bulb, 12V, 50W Halogen lamp
• MA327: Fuse 3Amp
• MA809/10: Removable AC Electric cord with plug for 115V models
• MA709: Dust Cover for MT7500 series models
• Manual: MT7500 Meiji Techno Instruction Manual

OPTIONAL COMPONENTS & ACCESSORIES BELOW

Viewing Heads:
• MA816: Trinocular head –Siedentopf type, Interpupillary adjustment 53mm to 75mm, graduated diopter in left eyetube (30.0mm I.D. eyetube),Inclined at 30 degrees
• MA815: Binocular head-Siedentopf type, Interpupillary Diameter adjustment 53mm to 75mm, graduated diopter on left eyetube (30.0mm I.D.eyetube). Inclined at 30 degrees
• MA959: Trinocular head – Siedentopf type, erect image with sliding 0/100 beamsplitter, inclined at 30 degrees, I.P. adjustment 53mm to 75mm, graduated diopter on left eyetube

Photo/Video Attachment :
• MA958: Photo/video attachment with sliding 80/20 beam-splitter. For use with video or digital cameras when MA957 ergonomic head is used (Included in Model MT9550)

Eyepieces:
• MA818: SWH 15X Widefield high eyepoint eyepiece, Field No. 16.0, tube O.D. 30.0 mm (each) (19mm reticle mount)
• MA819: SWH 20X Widefield high eyepoint eyepiece, Field No. 12.0, tube O.D. 30.0 mm (each) (19mm reticle mount)
• MA859: SWH 10X-F Focusing eyepiece with reticle mount (without reticle), tube O.D. 30.0 mm (each) (MA859 accepts optional 25mm diameter reticle)

Brightfield/Darkfield Plan Epi Objectives:
• MA686/05: Adapter to mount RMS thread objective to BF/DF nosepiece

Illuminator:
• MA928: Vertical Koehler illuminator, 12V 50W Halogen lamp, with clear blue, clear green, ND 50, neutral density filter, and polarizing filters in metal mounts 100V~240V. Powered by automatic voltage sensing transformer built into MT7500 Series stand

Eyepiece Micrometer (25mm diameter for use with MA817 or MA859 eyepieces):
• MA523: Eyepiece micrometer, cross-line reticle, 25mm diameter
• MA506: Eyepiece micrometer, 10mm line divided into 100 units, 25mm diameter
• MA509: Eyepiece micrometer, 5mm line divided into 100 units, 25mm diameter
• MA510: Eyepiece micrometer, 10mm square divided into 100 parts, each square 1.0 mm, 25mm diameter
• MA542: Eyepiece micrometer, cross-line reticle with 0.1mm graduations, 25mm diameter
• MA738: Eyepiece micrometer, for grain sizing in steel

Eyepiece Micrometer (19mm diameter for use with MA818 or MA819 eyepieces):
• MA279: Eyepiece micrometer, cross-line reticle, 19mm diameter
• MA280: Eyepiece micrometer, 10mm line divided into 100 units, 19mm diameter
• MA281: Eyepiece micrometer, 5mm line divided into 100 units, 19mm diameter
• MA283: Eyepiece micrometer, 10mm square divided into 100 parts, each square 1.0 mm, 19mm diameter
• MA539: Eyepiece micrometer, cross-line reticle with 0.1mm graduations, 19mm diameter

Stage Mircometers:
• MA292: Metal stage micrometer, 1mm divided into 100 units, 0.01mm

Replacement Bulbs and Fuses:
• MA686/05: Adapter to mount RMS thread objective to all MT7500/ MT8500 Series nosepieces
Magnification

Eyepieces:
   • MA817: SWH10X Widefield high eyepoint eyepiece, Field No. 22, tube O.D. 30.0 mm (each) (MA817 accepts optional 25mm diameter reticle) Included in all MT7000 Series

Models (INCLUDED)
   • MA818: SWH 15X Widefield high eyepoint eyepiece, Field No. 16.0, tube O.D. 30.0 mm (each) (19mm reticle mount)
   • MA819: SWH 20X Widefield high eyepoint eyepiece, Field No. 12.0, tube O.D. 30.0 mm (each) (19mm reticle mount)
   • MA859: SWH 10X-F Focusing eyepiece with reticle mount (without reticle), tube O.D. 30.0 mm (each) (MA859 accepts optional 25mm diameter reticle)

Brightfield/Darkfield Plan Epi Objectives:
   • MA923: Plan Epi Objective BD5X, N.A. 0.10, W.D. 17.0 mm, F.N. 22 (INCLUDED)
   • MA924: Plan Epi Objective BD10X, N.A. 0.25, W.D. 7.48 mm, F.N. 22 (INCLUDED)
   • MA925: Plan Epi Objective BD20X, N.A. 0.40, W.D. 5.20 mm, F.N. 22 (INCLUDED)
   • MA926: Plan Epi Objective BD50X, N.A. 0.75, W.D. 0.38 mm, F.N. 22 (INCLUDED)

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