MT7520EL, Metallurgical Ergonomic Binocular Upright Brightfield/Darkfield Compound Microscope with Infinity Corrected Plan EPI 5X, 10X, 20X, 50X and Vertical Koehler LED Incident Illuminator

MT7520EL LED Ergonomic Binocular Brightfield/Darkfield Metallurgical Microscope is engineered for professionals who demand precision, comfort, and high-contrast reflected-light performance. Featuring Meiji Techno’s Infinity Corrected Optical System (ICOS™), it delivers exceptionally sharp, flat, and distortion-free images when inspecting polished metals, grain structures, inclusions, heat-treated surfaces, and coatings. Its LED vertical incident illuminator provides bright, cool, and stable illumination for both brightfield and darkfield analysis, ensuring consistent results during extended workflows. A complete suite of Plan Epi infinity-corrected objectives — 5×, 10×, 20×, and 50× — gives users the versatility to work across a broad range of magnifications with superb clarity and contrast.

Built for long hours in industrial, research, and educational settings, the MT7520EL incorporates an ergonomic tilting binocular head (10°–50°), allowing each user to adjust their viewing angle for maximum comfort. The ceramic-coated flat-top stage offers durable, smooth 100 × 100 mm X-Y travel, while the heavy-duty Japanese-engineered frame ensures excellent stability at higher magnifications. With an auto-sensing 100–240 V power supply, widefield high-eyepoint eyepieces, intuitive controls, and a build that is 100% Made in Japan, this model combines optical performance with ergonomic efficiency. The MT7520EL is the ideal choice for quality-control labs, materials-science departments, metallography facilities, and R&D environments seeking a reliable, modern LED-based inspection system that enhances both productivity and accuracy.

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Description

MT7520EL LED Ergonomic Binocular Brightfield/Darkfield Metallurgical Microscope brings together advanced optical performance and modern LED illumination for high-precision reflected-light analysis. Designed with Meiji Techno’s Infinity Corrected Optical System, it delivers clean, high-contrast images perfect for studying surface structures, grain boundaries, inclusions, and metallurgical finishes. Its LED vertical incident-light source ensures consistent, cool, and uniform lighting in both brightfield and darkfield modes, offering a stable environment for long inspection sessions. The microscope comes equipped with a full suite of Plan Epi infinity-corrected objectives (5×, 10×, 20×, 50×), giving users a reliable range of magnifications for detailed and repeatable material evaluation.

Built with the needs of professionals in mind, the MT7520L blends ergonomics, precision, and durability into a compact, high-performance system. The 30° Siedentopf binocular head, widefield eyepieces, and intuitively placed controls support comfortable all-day use, while the ceramic-coated stage with smooth 100 × 100 mm X-Y travel ensures precise navigation of polished samples. Constructed on a reinforced frame and 100% Made in Japan, this microscope guarantees outstanding stability and long-term dependability. With its efficient LED illumination, rugged build quality, and complete objective set, the MT7520L is a trusted choice for industrial labs, metallography facilities, quality-control departments, and research environments that require consistent, professional-grade performance.

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

MT7520EL: Ergonomic Binocular Metallurgical Brightfield /Darkfield Compound Microscope with eyepiece adjustable vertically from 10 to 50 degrees. Vertical Kohler LED Incident (Reflected) light BF/DF and polarization illumination with ∞Infinity Corrected optical system F-200MM, with quintuple nosepiece and auto voltage sensing power supply

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)

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/L: Vertical LED BF/DF/POL Illuminator, with clear blue, clear green, ND 50, Neutral Density filter, and polarizing filters 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

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

LED/SP-1: 3W LED, 5500K color temperature


MA929: Spare fuse 0.5A for MT7500 LED Illuminator

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

MT7520L METALLURGICAL SERIES BROCHURE

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Components & Accessories – COMPOUND

Additional information

Components & Accessories

Included:
• MT7520EL: Ergonomic Binocular Metallurgical Brightfield /Darkfield Compound Microscope with eyepiece adjustable vertically from 10 to 50 degrees. Vertical Kohler LED Incident (Reflected) light BF/DF and polarization illumination with ∞Infinity Corrected optical system F-200MM, 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)
• 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/L: Vertical LED BF/DF/POL Illuminator, with clear blue, clear green, ND 50, Neutral Density filter, and polarizing filters 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
• LED/SP-1: 3W LED, 5500K color temperature
•MA929: Spare fuse 0.5A for MT7500 LED Illuminator
• 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, I.P. adjustment 53mm to 75mm, graduated diopter on left eyetube (30.0 mm I.D. eyetube) Inclined at 30 degrees Inverted Image (Included in MT7100 and MT7100L models))
• 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/L: Vertical LED BF/DF/POL illuminator, with clear blue, ND 50 neutral density filter, and polarizing filters in metal mounts. 100V~240V automatic voltage sensing AC adapter included. 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)
   • MA989: Plan Epi Objective BD100X, N.A. 0.90. W.D. 0.37 mm, F.N. 22