The Meiji Techno MT8530L Series is a high-performance metallurgical microscopes designed for precision inspection of metals, alloys, coatings, heat-affected zones, and other solid industrial materials. Built upon Meiji’s advanced ICOS™ Infinity Corrected Optical System (F = 200 mm), the MT8530L delivers exceptionally bright, crisp, and high-contrast images with outstanding color accuracy and a superior flat field of view. Its optical system features Plan EPI-BD objectives (5×, 10×, 20×, 50×) optimized for Brightfield, Darkfield, and Simple Polarization, providing exceptional clarity when examining polished and reflective surfaces. Paired with Super Widefield High-Eyepoint 10× eyepieces (FN 22) and a durable ceramic-coated mechanical stage offering 100 × 100 mm travel, the MT8500 ensures precise sample handling, distortion-free imaging, and consistent performance across research, quality control, and industrial inspection workflows.

Engineered with ergonomics and modularity in mind, the MT8500 Series includes smooth coaxial coarse and fine focusing—with 2 μm precision and a protective slip-clutch system—as well as right-hand ergonomic dropdown X-Y stage controls for comfortable long-term use. Users can choose between a powerful 12V/50W halogen illuminator or an optional high-efficiency LED system, both offering bright, stable reflected illumination ideal for metallurgical imaging. The microscope’s modular design supports a wide range of digital imaging options through its 23.2 mm photo port and 80/20 beam splitter, ensuring seamless integration with Meiji Techno’s HDMI and USB cameras for documentation and analysis. Manufactured 100% in Japan, the MT8500 Series combines optical excellence, industrial-grade durability, and advanced versatility—making it a trusted solution for metallurgical laboratories, research institutions, production floors, and failure-analysis environments that demand accuracy in every detail.

MT8530L Metallurgical Upright Brightfield/Darkfield Microscope With LED Transmitted & Incident Light

A metallurgical upright Brightfield/Darkfield microscope with both incident (reflected) light and transmitted light is a highly specialized instrument designed for examining the surface and internal structure of solid, opaque materials—especially metals, alloys, ceramics, and coated components. Unlike biological microscopes, which rely mainly on light passing through a specimen, metallurgical microscopes are built to reveal details on materials that light cannot pass through.

Why Incident (Reflected) Light Is Important

Metals and other solid samples are opaque. Light cannot pass through them.
So, the microscope uses incident light, which shines from above onto the polished surface. This allows users to see:

• Grain boundaries

• Surface quality

• Heat-affected zones

• Material phases

• Inclusions and impurities

• Micro-cracks, scratches, and defects

Incident light essentially “bounces” off the material and carries detailed information back into the microscope’s optical system.

Why Transmitted Light Matters

When the microscope includes transmitted Brightfield/Darkfield, it becomes more versatile. This mode is used for:

• Thin metallographic sections

• Transparent or semi-transparent coatings

• Films and layered materials

• PCB cross-sections

• Plastics, polymers, thin ceramics

Having both lighting techniques in one instrument allows a lab to analyze both the surface and internal structure of a material using the same system.

How Brightfield and Darkfield Improve Analysis

Brightfield (BF)

• Shows general structure and material texture

• Ideal for grain size, phases, color differences

• Used for documenting standard microstructure images

Brightfield produces a clean, natural-looking image.

Darkfield (DF)

• Illuminates the sample at a shallow angle

• Only scattered light enters the lens

• Defects like scratches, pits, inclusions, contamination, or cracks appear bright against a black background

Darkfield is perfect when you need to detect features too small or faint for Brightfield.

Additional Capabilities When Polarization Is Included

Polarization reveals optical properties that normal illumination cannot, such as:

• Stress patterns

• Crystal orientation

• Anisotropic phases

• Coatings that reflect polarized light differently

This is especially useful for analyzing heat-treated, welded, or mechanically stressed materials.

Where This Type of Microscope Is Commonly Used

A metallurgical BF/DF microscope with incident and transmitted light is essential in:

• Quality control labs

• Manufacturing and production floors

• Weld inspection labs

• Failure analysis departments

• Metallurgical research facilities

• Materials science laboratories

• Automotive, aerospace, and semiconductor industries

Professionals use it to determine if a material has been processed correctly and if it meets required specifications.

The MT8500 Series features include:

• Super Widefield 10X, High Eyepoint Eyepiece, Field No. 22, O.D. 30.0mm
• Ceramic Coated, flat-top stage, 191mm X 126mm with 100mm X 100mm travel.  Equipped with precision ball bearing quides and low positioned drop down coaxial controls for X-Y movement and 94.5mm circular glass insert stage plate. (Included in Model MT8520 and MT8530) (Factory Installed)
• The MT8500 Series Metallurgical microscopes is equipped with either Siedentopf type binocular or Siedentopf type trinocular viewing head, inclined at 30°and rotatable through 360° for comfortable viewing.  Optional tilting ergonomic Binocular head adjustable from 10°to 50°is available.
• Nosepiece large smooth operating with mounting threads of 26.0mm
• Infinity corrected, Plan EPI Brightfield /Darkfield Objectives
• Vertical illuminator with full Koehler design equipped with 12 50W Halogen light source or LED, field iris, aperture iris and filter slots.  Capable of brightfield, darkfield or simple reflected polarization technique.  Includes blue clear, Green clear, Neutral density (DN50) filters in mounts.
• Automatic voltage sensing (100V-240V) power supply and variable rheostat control are supplied in a separate case.  Transmitted light Koehler illuminator with 6V 30W halogen lamp, automatic voltage sensing transformer and intensity control are built into the microscope base.
• Ergonomically low position focusing controls allow the operator to work their forearms relaxed on the working surface, range of travel is 23mm and rotation of fine focus is 0.2mm per revolution.
• Triangular footprint design, maximizing comfort of user 263mm (D) x 176mm(W)

• MT8530L: Ergonomic LED Trinocular Metallurgical Brightfield /Darkfield Compound Microscope with Incident LED (Reflected) light BF/DF and Transmitted light LED BF/DF and simple Polarization Observation. ∞ Infinity Corrected optical system F-200MM. Vertical LED Köhler illuminator , with infinity tube lens, focal length 200mm, LED with clear blue, clear green, ND 25, neutral density filter, and polarizing filters in metal mounts and Transmitted Kohler LED illumination and simple polarization with quadruple nosepiece and auto voltage sensing power supply 110-240V

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.

• MA816: Trinocular head – Siedentopf type, Interpupillary adjustment 53mm to 75mm, graduated diopter on left eyetube (30.0 mm I.D. eyetube). Inclined at 30° degrees (Included in Model MT8530 and MT8530L)

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 (each) (MA817 accepts optional 25mm diameter reticle)

• MA906 (x 2): Eyeshield for MA817 SWH 10X eyepiece (each)

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.

• MA906 (x 2): Eyeshield for MA817 SWH 10X eyepiece (each)
• MA923: Plan Epi Objective BD 5X, N.A. 0.10, W.D. 17.0 mm, F.N. 22, ∞ Infinity Corrected
• MA924: Plan Epi Objective BD 10X, N.A. 0.25, W.D. 7.48 mm, F.N. 22, ∞ Infinity Corrected
• MA925: Plan Epi Objective BD 20X, N.A. 0.40, W.D. 5.20 mm, F.N. 22, ∞ Infinity Corrected
• MA926: Plan Epi Objective BD 50X, N.A. 0.75, W.D. 0.38 mm, F.N. 22, ∞ Infinity Corrected

ILLUMINATION

Powerful 50 watt halogen vertical illumination along with 30W Transmitted Koehler Illumination provides super enhanced image quality and brightness for the observation of metallurgical specimens and photomicroscopy.

• MA928:Vertical Köhler illuminator, with infinity tube lens, focal length 200mm, 12V 50W halogen lamp with clear blue, clear green, ND 25, neutral density filter, and polarizing filters in metal mounts. 100V~240V (requires MA928/05)
• MA928/05: Electronic  external transformer with automatic voltage sensing capability for  MA928 in separate case (Input 100V~240V, Output 12V 50W) (Included on Halogen models only)

STAGE

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

• MA942: Ceramic Coated, flat-top stage, 191mm X 126mm with 100mm X 100mm travel.  Equipped with precision ball bearing quides and low positioned drop down coaxial controls for X-Y movement and 94.5mm circular glass insert stage plate. (Included in Model MT8520 and MT8530) (Factory Installed)

• Focusing Adjustment: Coaxial coarse and fine focusing controls with graduation reading 2 microns per division.  Range of travel is 23mm.  Incorporates tension adjustment and safety Auto-focus stage stop lever. (Factory Installed)

• 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
• MA910/05: Substage condenser with iris diaphragm, dovetail mount

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.

• MA275/05: Bulb 12V 50W Halogen lamp (Incident light)(Factory Installed)
• MA326: Bulb 6V 30W Halogen lamp (Transmitted light)(Factory Installed)
• MA327: Fuse 3A for transmitted light Halogen Illuminator(Factory Installed)
• MA809/10: Removable AC Electric cord with plug for 115V Models (Included in all 115V models) or
• MA809/20: Removable AC Electric cord with plug for 220V Models (Included in all 220V models)
• MA709: Dust cover for all MT8500 Series models
• Manual: Meiji Techno America MT8500 Manual
• Warranty: Limited Lifetime Warranty Card

MT8530L 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: 35 lbs (9.4kg)
• 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) (9.4kg)( 34.0 lbs.)
• Trinocular head type: 477.5 mm(D) x 526mm(H) x 210mm(W) (9.6kg)(35.0 lbs.)
• Ergonomic Binocular head type: 477.5 mm(D) x 471mm (H) x 210mm(W) (9.4kg)( 34.0 lbs.)
• Ergonomic Trinocular head type: 477.5 mm(D) x 550mm(H) x 210mm(W) (10.2kg)(37.0 lbs.)