Complete Research Grade Inverted Metallograph


Easy and Comfortable to Use with a Variety of Image Forming Techniques


Image Forming Mirror Turret
To handle the diversity of incoming samples and their unique analysis requirements the GX71 implements the largest variety of image forming techniques of all the Olympus inverted metallographs. Brightfield, darkfield, DIC, simple polarization, and fluorescence are available for spot-on investigations. Housed in a dust free turret a selection of mirror cubes can be conveniently and quickly rotated from one position to another.

Built-In Magnification Changer

Continuous zoom or selectable increments allow images to be viewed at higher magnifications for added inspection versatility and/or required test and inspection standards.

Magnification Changer
Zoom In/Out Function

Super Widefield Observation

26.5mm Viewfield Compatible Observation Tubes
Scan large areas for sample integrity, or defects and irregularities with the 26.5mm view-field offered with the GX-71 system.

Enhanced Efficiency Through Motorization

The use of motorized components can save time and cut costs when large quantities of samples require analysis. A single handset is available to quickly control the rotation of objectives. For higher levels of speed and analysis, Stream Image Analysis Software will manage additional components such as the motorized filter wheel and automated scanning stages.

Motorized Components and PC control

Excellent Image Clarity and Superb Resolution


Variety of Choices for Superior Imaging Performance

UIS2 optics delivers bright, sharp, high-resolution images suitable for all observation methods: brightfield, darkfield, differential interference contrast, polarization, and fluorescence. Designed with specific wave front aberration controls and specialty coatings for color fidelity, UIS2 optics ensure images are true to form and highly resolved.

Example Observation Images
Simple Polarization


Diverse Lineup Allows Selections According to the Purpose
MPLAPON Plan Apochromat Objective Lens Series
MPLFLN Semi Apochromat Objective Lens Series for Brightfield
MPLFLN-BD Semi Apochromat Objective Lens Series for Brightfield and Darkfield
MPLFLN-BDP Semi Apochromat Objective Lens Series for Brightfield and Darkfield
LMPLFLN Long WD Semi Apochromat Objective Lens Series for Brightfield
LMPLFLN-BD Long WD Semi Apochromat Objective Lens Series for Brightfield and Darkfield
MPLN Plan Achromat Objective Lens Series for Brightfield
MPLN-BD Plan Achromat Objective Lens Series for both Brightfield and Darkfield
SLMPLN Super Long WD Plan Achromat Objective Lens Series
LCPLFLN-LCD Long WD Semi Apocromatic Objective Lens Series for LCD


Software Solution


Built to Easily Work with Digital Cameras and Image Analysis Software

Our full line of digital cameras provide high resolution viewing and fast image transfer while our advanced OLYMPUS Image Analysis Software empowers users and provides all the tools required for today’s most complex metallurgical requirements. Choose from Extended Measurements, Standard Metallography and Advanced Metallography application specific modules (over a dozen application specific routines) and automatically populate data and create reports in compliance with the most popular ASTM and ISO specifications, all with just a few clicks of the mouse.




Transmitted Light Illuminator

A transmitted light illuminator can be attached to the back of the microscope body, enabling observation of transparent specimens and powders.



Inverted Metallurgical Microscope GX71 Specifications
Optical System UIS2 Optical System (Infinity-corrected)
Microscope Frame Observation Method BF/DF/DIC/KPO*/FL
Reflected/Transmitted Reflected/Transmitted
Illuminator 6-unit Turret Switching
Illumination System Reflected Light 100 W Halogen/100 W Mercury/75 W Xenon
Transmitted Light 100 W Halogen
Focus Motorized /Manual Manual Revolving Nosepiece Up/Down Movement (Stage Stationary Type)
Stroke 9 mm
Resolution/Fine Adjustment Sensitivity Fine Stroke per Rotation 0.1 mm
Revolving Nosepiece Motorized Type Sextuple for BF/DICQuintuple for BF/DF/DIC
Manual Type Centerable Quadruple for BF/DICSextuple for BF/DICQuintuple for BF/DFQuintuple for BF/DF/DICCenterable Quintuple for BF/DF/DICSextuple for BF/DF/DIC
Medium Variable Magnification Zoom Incorporated (1x-2x)
Camera Port Front Port (Reversed Image), Side Port (Reversed Image)
Stage Stroke 50(X)x50(Y)mm
Observation Tube Standard Field (Field Number 18) Inverted Image -
Standard Field (Field Number 20) -
Wide Field (Field Number 22) Inverted Image -
Erect Image -
Super Wide Field (Field Number 26.5) Inverted Image Binocular/Trinocular Observation Tube
Erect Image -
Option Transmitted Light Polarization Observation Unit
Dimensions 280(W)x748(D)x445(H)mm
Weight 38 kg (in Standard Combination)
Remark *Simple Polarized Light Observation


The GX71 inverted microscope remains one of the most sought-after core research metallographs in use today. Capable of numerous image forming techniques with UIS2 objectives, the GX71 is the workhorse that will provide years of reliability.