Description
MT7530L LED Trinocular 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.
What the MT7530L Upright Metallurgical Brightfield/Darkfield Microscope Is Used For
An upright metallurgical microscope is designed for inspecting solid, opaque materials—metals, alloys, ceramics, semiconductors, composites, and polished industrial samples. Because these materials do not transmit light, the microscope uses incident (reflected) illumination from above the specimen.
It supports Brightfield (BF) and Darkfield (DF) observation, giving users two powerful contrast methods for detecting surface features and microstructural details.
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
Includes:
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
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 LED 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
• 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 |
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| 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 |
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| 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 |
MT7530L METALLURGICAL SERIES BROCHURE
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