EMZ-5D + MA502 + FS + FA-3, Stereo Zoom Binocular Stand Configuration System, Magnification (7X – 45X), W.D. 93mm (3.66″)

Key Components

  • EMZ-5D Binocular Head with Detent – The main optical unit that provides zoom magnification (0.7×–4.5×) and produces a clear 3D image using Greenough stereo optics.
  • MA502 Eyepieces – Pair of 10× Super Widefield eyepieces that deliver a broad, clear view.
  • FS Focus Block – A rack‑and‑pinion focus holder that lets you adjust focus smoothly and precisely with coarse focus control.
  • FA-3 Stand – Industrial triple‑joint articulating boom stand that lets you easily position the microscope head horizontally and vertically over samples, offering flexibility without sacrificing stability.

Optical Performance

  • Zoom Range: 0.7× – 4.5× (zoom ratio ~6.5:1)
  • System Magnification: ~7× to 45× with 10× eyepieces 
  • Working Distance: 93 mm (3.66 in) — plenty of space between the objective and the subject for manipulation or tools.
  • Sharp, high-contrast stereo images
  • Excellent depth of field for 3D specimen viewing
  • Dual bilateral zoom knobs with detent click-stops make magnification repeatable, accurate, and easier to select.

What It Does

Stereo zoom microscopes with detents are popular because the detent mechanism provides fixed, repeatable magnification positions that improve consistency, accuracy, and workflow efficiency during inspection and measurement tasks. A detent is a mechanical click-stop built into the zoom control, allowing the user to feel and lock into specific preset zoom levels instead of relying on a continuously smooth adjustment that may drift or be difficult to reproduce exactly. This is especially important in applications such as electronics repair, PCB inspection, watchmaking, biological dissection, industrial quality control, and microscopy photography, where users often need to return to the same magnification repeatedly or compare observations across multiple samples. Detents also help maintain calibration accuracy when measurement reticles, cameras, or digital imaging software are used, because the microscope can be reliably set to known magnification points that correspond to calibrated values. In teaching labs and production environments, they simplify communication and standardization since operators can quickly select a shared zoom setting without estimation. Although non-detented zoom microscopes offer smoother and infinitely variable magnification control, detented systems are preferred when precision, repeatability, and stable preset zoom positions are more valuable than continuous adjustment flexibility.

 

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NOTE: The versatility of a Meiji Techno Stereo Microscope is the ability to pick from a wide range of components to adapt to your unique application:
• Stereo Microscope Body (Zoom, Turret or Fixed)
• Eyepieces (Requires 2 of identical magnification)
• Stand (Pole stands, rigid arm stands, boom stands, heavy duty boom stands, wide surface stands or articulated arm stands)
• Illumination Source (Fiber optic halogen, fiber optic LED, fluorescent ring or LED illumination)
• Auxiliary Lens (Optional)

Made In Japan

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Description

EMZ-5D: Binocular Microscope Head + MA502: Eyepieces + FS: Focus Block + FA-3: Stand

EMZ-5D: Microscope Head
The EMZ-5D body offers detent click-stops and delivers sharp, high-contrast images and an excellent zoom range of 6.5:1 that provides exceptionally high-resolution images all throughout the zoom range. The EMZ-5D employs Greenough optics, for improved image flatness and contrast. As a result, images are brighter and more distinct even at the periphery of the field of view. With the large zoom range, the EMZ-5D offers high resolution observation in precision-oriented semi-conductor, medical device and routine inspection. In addition to its compact design and versatility a wide variety of auxiliary lenses and stands are available to allow the user to customize their desired working distance to adapt to almost any application.

MA502: Eyepieces 
Included is the MA502 Super Widefield Eyepiece 10X (pair) with 25mm reticle mount Field No. 23.0, Eye Relief 16.0, Focal Length 25.0.

FS: Focus Block 
The FS Coarse Focus Block/Holder is a tilting focus holder with an integral adjustable illuminator port. It has a rack and pinion mount that allows smooth and precise focusing over 55mm of travel. The coarse focus mechanism incorporates a slip clutch and tension adjustment.

FA-3: Stand 
The Meiji Techno FA-3 Triple Joint Articulating Table Clamp Boom stand is an industrial type articulating arm stand with 16mm diameter mounting pin for ready for a FS & FSC focus holder that is inclinable 180° and rotated 360° (optional) or a OS-SP20MM – 20mm drop down post (optional) for F focus block. Great for examining industrial parts and for inspection of larger or awkward shaped item, this articulating arm stand provides ultimate versatility without sacrificing stability. This articulated stand weighs about 30 lbs. and comes with a 15.25”, 387.35mm High Stainless Steel Pillar and 37″, 939mm Reaching-out length.

EMZ-5D: Microscope Head

Body: Binocular, Rotatable 360°, Cast Aluminum Alloy Construction
Zoom Ratio: 6.5:1
Zoom Range: 0.7x – 4.5x
Zoom Knobs Markings: 0.7, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5
Zoom Control: Dual, detent graduated click-stops, bilateral
Magnification: 7x – 45x  (10x eyepieces)
Objective Lens: Brass Construction
Field of View: 32mm – 5.1mm
Working distance: 93mm
Eyetube Inclination: 45°
Eyepieces: 5x, 7.5x, 10x, 12.5x, 15x, 20x, and 30x (optional)
Interpupillary Distance: 54mm – 75mm
Dioptric Adjustment: Dual (+/- 5 diopters)
Extended Mag Range: 2.1x – 270x (With auxiliary lenses and eyepieces)
Extended Working Distances: 34mm – 251mm (With auxiliary lenses and eyepieces)
Auxiliary Lenses: 0.3x (252mm), 0.44x (181mm), 0.5x (150mm), 0.75x (97mm), 1.5x (49mm), and 2x (34mm) (optional)
Mounting: Fits 84.5mm Diameter Focus Holders

Package Information:
6 lbs
14 x 8 x 9 inches

MA502: Eyepieces 

ma502

Included is the MA502 Super Widefield Eyepiece 10X (pair) with 25mm reticle mount Field No. 23.0, Eye Relief 16.0, Focal Length 25.0

 

FS: Focus Block

FS-holder

Uses 15.8mm (5/8″) diameter, 34.5mm long mounting pin. The 84.2mm diameter opening accepts all EM Series stereo bodies.

FA-3: Clamp Boom Stand

Stand: Articulated arm stand with triple joint for flexibility
Illumination Port: No illumination, requires an external illuminator for lighting

Stereo Terminology

OPTIONAL ILLUMINATOR ACCESSORIES AVAILABLE FOR THIS CONFIGURED SYSTEM 

RINGLIGHTS (OPTIONAL)
Model MA962 MA964 MA961D/S/ESD (SLIMLINE) MA961D/40 (40 LEDs) MA961D/80/ESD (80 LEDs) MA305/100
Light Type LED LED LED LED LED Fluorescent
White Light Options Daylight Daylight Daylight,
Cool White,
Warm White
Daylight,
Cool White,
Warm White
Daylight,
Cool White,
Warm White,
Daylight,
Warm White
Number of Bulbs 56 60 40 40 80 1
Wattage 3.5W 10W 4W N/A 5W 8W
Input 100V-240V 100V-240V 100V-240V 100V-240V 100V-240V 100V-240V
Output 12V DC, 0.5A 10W 24V, -0.75A 18W max 24V, -0.75A 18W max 24V, -0.75A 18W max 8W
Inner Diameter 57mm (2.24″) 54.6mm (2.15″) 66.8mm (2.63″) 66.8mm (2.63″) 66.8mm (2.63″) 48mm (1.89″)
Outer Diameter 95.5mm (3.76″) 90mm (3.54″) 101mm (4.01″) 97mm (3.81″) 105mm (4.11″) 90mm (3.54″)
Height 31.75mm (1.25″) 22.8mm (0.9″) 28mm (1.09″) 26mm (1.02″) 26mm (1.02″) 15.8mm (0.662″)
Length 133.8mm (5.27″) 90mm (3.54″) 135mm (5.30″) 151mm (5.94″) 125mm (4.92″) 109mm (4.29″)
Needs Adapter Mount for EMZ Series (MA302) Yes No Yes No No Yes
Needs Adapter Mount for RZ Series (MA308) Yes No Yes No No Yes
DUAL ARM FIBER OPTIC ILLUMINATORS (OPTIONAL)
Model FL151 FT191 FL-5000-DG FQ151 FQ-5000-DG TPI6IL
Light Type  Halogen Halogen LED Halogen LED LED
Input 115 V AC (230 V AC available) 120 V AC (230 V AC available) 110 V AC (240V available) 115 V AC (220V available) 110 V AC (220V available) 90-264 VAC
Wattage 150 Watt, 21 V 150 Watt, 21V 150 Watt, 21V 150 Watt, 21V 150 Watt, 21V 5 Watt
Output 1750 Lumens at fiber optic plane 200 Watt (Max) 2000+ Lumens (12.7mm aperture) 150 Watt 80 Watt 500 Lumens
Fuse Type 3 Amp, 3A slow blow 2, 5 Amp slow blow 0.5A-1.2A 3Amp 2Amp N/A
Color Temperature 3200K 3200K 5000K 3250K 5000K-8300K 6500K
Input Fiber Diameter 15mm or 25mm (optional) 15mm or 25mm (optional) 15mm or 25mm (optional) 15.8mm (0.625″) (other sizes available) 15.8mm (0.625″) N/A
Light Guide Length 584mm (23″) self-supporting 584mm (23″) self-supporting 584mm (23″) self-supporting 609mm (24″) obedient arm 609mm (24″) obedient arm 482.60 mm (19″)
Active Fiber Bundle 0.20″ (5mm) 0.31″ (8mm) 0.20″ (5mm) 0.265” (4.76mm) 0.265” (4.76mm) N/A
Dimensions 6.8” (W) X 5” (H) X 8.3” (D) 8” (W) X 4.75” (H) X 7” (D) 7.0” (W) X 4.9” (H) X 8.8” (D) 7.0” (W) X 6.5” (H) X 7.5” (D) 4.75″ (W) X 6″ (H) X 9″ (D) 4.68″ (Diameter) x 19 ¾ ” (L) x 2.20 (Base Height)
Weight 7.75lbs 13.5lbs 6lbs 7.5lbs 7 lbs 5.25lbs
ANNULAR ARM  FIBER OPTIC ILLUMINATORS (OPTIONAL)
Model FL152 FT192 FL-5000-RL FQ152 FQ-5000-DG
Light Type  Halogen Halogen LED Halogen LED
Input 115 V AC (230 V AC available) 120 V AC (230 V AC available) 110 V AC (240V available) 115 V AC (220V available) 110 V AC (220V available)
Wattage 150 Watt, 21 V 150 Watt, 21V 150 Watt, 21V 150 Watt, 21V 150 Watt, 21V
Output 1750 Lumens at fiber optic plane 200 Watt (Max) 2000+ Lumens (12.7mm aperture) 150 Watt 80 Watt
Fuse Type 3 Amp, 3A slow blow 2, 5 Amp slow blow 0.5A-1.2A 3Amp 2Amp
Color Temperature 3200K 3200K 5000K 3250K 5000K-8300K
Input Fiber Diameter 15mm or 25mm (optional) 15mm or 25mm (optional) 15mm or 25mm (optional) 15.8mm (0.625″) (other sizes available) 15.8mm (0.625″)
Light Guide Length 914.4mm (36″) 914.4mm (36″) 914.4mm (36″) 914.4mm (36″) 914.4mm (36″)
Active Fiber Bundle 9.5mm (0.373”) 10mm (0.394″) 9.5mm (0.373”) 9.45mm (0.371″) 9.45mm (0.371″)
Diameter Ring Aperture 60.2mm (2.37″) 60mm (2.36″) 60.2mm (2.37″) 60mm (2.36″) 60mm (2.36″)
Dimensions 6.8” (W) X 5” (H) X 8.3” (D) 8” (W) X 4.75” (H) X 7” (D) 7.0” (W) X 4.9” (H) X 8.8” (D) 7.0” (W) X 6.5” (H) X 7.5” (D) 4.75″ (W) X 6″ (H) X 9″ (D)
Weight 7.75lbs 13.5lbs 6lbs 7.5lbs 7 lbs
SINGULAR ARM FIBER OPTIC ILLUMINATORS (OPTIONAL)
Model FL153 FT193 FL-5000-SG
Light Type  Halogen Halogen LED
Input 115 V AC (230 V AC available) 120 V AC (230 V AC available) 110 V AC (240V available)
Wattage 150 Watt, 21 V 150 Watt, 21V 150 Watt, 21V
Output 1750 Lumens at fiber optic plane 200 Watt (Max) 2000+ Lumens (12.7mm aperture)
Fuse Type 3 Amp, 3A slow blow 2, 5 Amp slow blow 0.5A-1.2A
Color Temperature 3200K 3200K 5000K
Input Fiber Diameter 15mm or 25mm (optional) 15mm or 25mm (optional) 15mm or 25mm (optional)
Light Guide Length 457.2mm (18″) 508mm (24″) 457.2mm (18″)
Active Output Fiber Bundle 6.35mm (0.25″) 6.35mm (0.25″) 6.35mm (0.25″)
Dimensions 6.8” (W) X 5” (H) X 8.3” (D) 8” (W) X 4.75” (H) X 7” (D) 7.0” (W) X 4.9” (H) X 8.8” (D)
Weight 7.75lbs 13.5lbs 6lbs

Components & Accessories

Eyepieces Stands Focus Blocks Holder Auxiliary Lens Illuminators
Eyepieces (Stereo/Compound) Stands Focus Blocks Holder Auxiliary Lenses Illuminators
Micrometer Lens Stages Polarizing Accessories Protective Glass Covers Cameras
Micrometer Lens Stages Polarizing Accessories Protective Glass Covers Microscopy Cameras
C" Mounts/Camera Adapters Filters C" Mounts/Camera Adapters
C” Mounts/Camera
Adapters
Filters Accessories

EM STEREO SERIES BROCHURE

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Additional information

Specifications

Includes:
• Binocular Body (EMZ-5D)
• 10X Eyepiece (MA502)
• Stand (FA-3)
• Coarse Focus Block (FS)
• Meiji Techno Dust Cover (MA703)
• Rubber Eyeguards/Eyeshields (Paired) (MA600)
• EMZ Meiji Techno Instruction Manual
• Limited Lifetime Warranty Card

Product Information:
Manufacturer: MADE IN JAPAN
Warranty: LIMITED LIFETIME WARRANTY

Details

Modular Flexibility:
EMZ Series zoom stereo microscopes are most the rugged microscopes from Japan and tailored to fit the needs of each and every customer. Modular design enables the user to engineer their own custom solution for virtually any application, selecting components from the widest range bodies, stands, eyepieces, supplementary lenses, illuminators, camera adapters, and accessory components available in the microscope industry today.

Superb Optics:
Multi-coated optical components, free form chromatic and spherical aberration, provide crystal-clear, high resolution images. The Greenough optical design provides superior erect, unreversed, stereoscopic images, rich in contrast, brightness and correct in their original color. Excellent depth of field and a flat image rendition are also characteristic of the EMZ Series product line.

Rugged Dependability:
All-metal aluminum alloy microscope bodies and components with chemical resistant finishes guarantee stability and rugged dependability for a lifetime of day-in and day-out use. Superior craftsmanship, quality components and materials result in long-lasting, high-performance products.

Ergonomic Design:
All EMZ Series zoom stereo microscope bodies feature a compact lightweight design. Every stereo body features adjustment diopter tubes and interpupillary distance adjustment. Observation tubes are inclined at 45°, 60° or 90° for convenient fatigue free viewing depending on the application, A range of fixed of tilting focus blocks are available to mount the microscope body onto existing O.E.M. equipment. A choice of Zoom, Turret or Fixed magnification bodies with various working distances, optional auxiliary objectives and eyepieces, multiple adjustable stands, versatile illumination systems, and auxiliary components allow the end user to design a system to fulfill their specific requirements.

Applications:
EMZ Series zoom stereo microscopes are the prefect modular microscope systems for a multitude of applications ranging from biological and industrial fields to educational and training situations. A wide variety of professional groups currently use the EM series product to their advantage: Biologist, Physicians, Geologists, Engineers, Dentists, Dental Technicians, Veterinarians, Paleontologists, Entomologists, Gemologists, Educators, Scientific Researchers, Quality Control Personnel, Quality Assurance Personnel, Assemblers, Forensic Document Examiners, Art Restoration Experts, Textile Specialists, Wire and Die Manufacturers, Environmental Specialists, Ophthalmic Specialists, Dermatologists, Metrology Personnel, Tool and Die Professionals, Circuit Board Rework and Repair Personnel, Aquaculture Professionals, Embryo Transplant Professionals, Horticultural Experts, Exterminators, Fish and Wildlife Departments, U.S. Customs Service, Semiconductor Manufacturers, Foresters, Pharmaceutical Manufacturers, Electroplating Specialist, Ballistics Experts, and more!