Meiji Techno GMZ-40BF/DF – Binocular Zoom Stereo GMZ Microscope System

Meiji Techno GMZ Professional Jewelry Stereo Microscope System (6.7x - 45x)

Elevate your gemstone inspection with the Meiji Techno GMZ Professional Jewelry System. Engineered for precision and versatility, this binocular zoom stereo microscope offers a seamless magnification range of 6.7x to 45x, making it the ideal choice for jewelers, gemologists, and stone setters who require uncompromising clarity.

This robust system features a 45° inclined head for ergonomic viewing and an inclinable stand that adjusts from 0 to 45°, ensuring comfort during long hours of grading. Equipped with both Brightfield and Darkfield capabilities, a built-in iris diaphragm, and a specialized gem clamp, the GMZ system provides the high-contrast environment necessary to identify inclusions and verify stone quality.

Key Features & Benefits

• Powerful Zoom Range: 0.67x - 4.5x zoom body provides a total magnification of 6.7x - 45x with the included 10x high eyepoint eyepieces.
• Advanced Illumination: Includes a U-shaped fluorescent incident top light for soft, even surface lighting and a 30W halogen bottom light for critical internal inspection.
• Professional Gemology Tools: Features a brightfield/darkfield slider, an integrated iris diaphragm for light control, and a secure gem clamp.
• Ergonomic Design: 360° rotatable binocular head with ±5° diopter adjustment and an inclinable base to reduce neck and back strain.
• Expansive Field of View: Offers a wide 4.9mm to 32.8mm field of view, allowing you to see more of the specimen at once.

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Technical Specifications

Optical Performance

Magnification Range	6.7x – 45x	Working Distance	100mm (Expandable to 287mm)
Zoom Ratio	1:6.7	Field of View	4.9mm – 32.8mm
Eyepieces	10x High Eyepoint (30mm)	Eyetube Angle	45° (360° Rotatable)

Stand & Illumination

Stand Type	Inclinable Illumination Base (0-45°)	Top Light	Fluorescent U-shaped Incident
Bottom Light	Halogen (Brightfield / Darkfield)	Iris Diaphragm	Built-in
Voltage	Universal AC 110-220V	Material	Heavy-duty Metal Construction

Physical Dimensions

• Base Dimensions: 310mm x 250mm x 70mm
• Total System Weight: Approx. 8.25kg (18.1 lbs)
• Focus Travel: 110mm with adjustable tension

What's in the Box?
GMZ Binocular Zoom Body, 10x Eyepieces (Pair), Inclinable Illumination Stand, Gem Clamp, Fluorescent Top Light, Dust Cover, and Power Cord.

Product Specifications

Optical System Overview

System Optical Magnification	6.7x – 45x
Standard Eyepieces	10x High Eyepoint (Plan)
Standard Field of View	Ø 4.9mm – 32.8mm
Expandable Field of View	Ø 1mm – 109.5mm (with optional optics)
Working Distance	100mm (Expandable from 26mm – 287mm)

EM-40 Binocular Zoom Body

Zoom Ratio & Range	1:6.7 Ratio | 0.67x – 4.5x Range
Viewing Head	45° Inclination, 360° Rotatable, Erect Image
Interpupillary Adjustment	54mm – 75mm with ±5° Diopter Adjustment
Construction	Metal with Spray Paint finish (White)
Net Weight	1.46kg (3.22 lbs)

GMZT/PT Stand & Illumination

Base Type	FH Dual Illumination Base (310mm x 250mm x 70mm)
Focusing	Manual Coarse Focus (110mm distance, Adjustable Tension)
Top Illumination	Oblique Fluorescent Light (7W)
Bottom Illumination	Bright/Dark Field Halogen (30W, 6V)
Vertical Inclination	0 – 45° adjustable angle
Power	AC 110-220V 50/60Hz (USA 3-pin plug)

Replacement Bulbs

• MA326/06: Halogen Bulb, 30W, 6V, G4 Bi-Pin
• MA309/06: Fluorescence Bulb, 7W, U-shape