NIS 60mm Bright/Brightdark Apochromatic Metallographic Objective

Key Benefits

• Apochromatic correction reduces chromatic and spherical aberrations for accurate color and edge definition in metallographic samples
• Parfocal design maintains focus when switching between objectives, reducing setup time and improving inspection consistency
• Available in both brightfield and darkfield configurations, so surface and subsurface features can be examined under the same optical system
• High numerical aperture options (0.8 and 0.9) deliver sharp resolution at 50X and 100X, ideal for fine grain and microstructure analysis
• 60mm mechanical tube length ensures compatibility with standard metallographic microscope bodies and accessories

Application Scenarios

• Inspecting grain structure and phase distribution in cast iron, steel and aluminum alloys
• Examining surface defects such as cracks, porosity and inclusions in machined or heat-treated metal parts
• Documenting microstructural changes after heat treatment or mechanical stress testing
• Performing quality control on precision-machined metal components in automotive and aerospace manufacturing
• Supporting research in materials science where both surface and subsurface features must be evaluated

Who It Is For

• Metallurgy and materials science labs in industrial and academic settings
• Quality control departments in foundries, heat-treatment and machining plants
• Research and development teams analyzing metal fatigue, corrosion and wear
• University teaching labs conducting materials testing and microstructure analysis
• Precision manufacturing facilities requiring repeatable, high-resolution metallographic inspection

Problems It Solves

• Inconsistent focus when switching objectives forces repeated refocusing and increases inspection time
• Chromatic aberration in low-end objectives distorts color and edge detail, leading to misinterpretation of microstructure
• Lack of darkfield capability limits visibility of surface defects and fine textures in polished metal samples
• Mismatched tube length between objectives and microscope bodies causes misalignment and poor image quality
• Inadequate numerical aperture at high magnification reduces resolution and obscures fine features

Technical Features

• Apochromatic optical correction for improved color fidelity and edge sharpness
• Parfocal across all magnifications in the series, so focus is maintained when switching objectives
• Available in both brightfield and darkfield illumination modes for versatile surface and subsurface inspection
• 60mm mechanical tube length standard for compatibility with most metallographic microscopes
• High numerical aperture options (0.8 and 0.9) at 100X for enhanced resolution and depth of field control

Specifications

Specifications are taken from the AMADA product data for this item. Confirm critical dimensions with us in writing before ordering.

Customization Options

• Select between brightfield and darkfield illumination modes for the same objective model
• Choose from multiple numerical aperture variants at 50X and 100X to match specific resolution and working distance needs
• Use with standard 60mm tube length microscopes without modification or adapter requirements

Comparison With Other Options

Use Guide

• Ensure the microscope has a 60mm mechanical tube length before mounting the objective
• Select the correct illumination mode (brightfield or darkfield) based on the sample type and feature of interest
• Use the highest numerical aperture objective available for the required resolution at 50X and 100X
• Adjust the working distance carefully at 100X, especially with NA 0.9 and 1mm working distance, to avoid contact with the sample
• Clean the front lens with lens paper before and after use to prevent scratches and contamination