20x Plan Stress-Free PLPOLRi Objective 0.40 NA 5.8 mm Working Distance Polarising - Euromex

Combine high-contrast polarisation imaging with a flat, strain-free field and a practical working distance to speed inspection and reduce retakes. Benefit from 20× magnification and a 0.40 NA for reliable detail resolution; order via Metav Werkzeuge or consult our specialists for application advice.

IS.7920-R plan polarising objective — 20× / 0.40, 5.8 mm working distance (Euromex)

IS.7920-R is a plan polarising microscope objective designed for polarisation work in both reflected and transmitted illumination, optimised for iScope stands and routine material inspection without cover glass correction.

• Plan strain-free optical correction
• 20× magnification, NA 0.40
• Polarisation for reflected and transmitted light
• 5.8 mm working distance

Accurate polarisation imaging for reproducible inspection

The combination of plan optics and strain-free construction ensures a flat field with minimal birefringence artefacts, which is essential when evaluating stress patterns or anisotropic structures under polarisation. With 20× magnification and a 0.40 NA, the objective balances resolving power and depth of field, delivering clear contrast for microstructural features while maintaining sufficient working clearance for common samples. This optical specification supports rigorous visual assessment in quality control and laboratory environments.

Practical working distance and no cover glass correction for bulk samples

A 5.8 mm working distance provides usable clearance for larger specimens and for setups where no cover slip is used. The objective is supplied without cover glass correction, which intentionally optimises imaging for specimens placed directly on the stage or in reflected-light setups. That approach reduces the need for constant refocusing when switching between bulk components and thin sections, improving throughput in metallurgical and materials-inspection workflows.

Seamless integration and straightforward handling for reliable operation

Designed for the iScope series, the objective fits into common microscope turret arrangements for quick interchangeability. The 0.40 NA offers a balance between light collection and depth of focus that eases illumination setup, while the polarisation capability expands contrast options for both reflected and transmitted light techniques. Careful handling and routine cleaning with lens-safe fluids maintain optical performance and ensure consistent results across inspection cycles.

Request tailored technical advice or place an order via Metav Werkzeuge for Euromex iScope polarising objectives; Metav’s consultants in Emmerich are available at +49 2822 7131930 or info@metav-werkzeuge.com

Technical data

• Article number: IS.7920-R
• Name: Plan polarising objective PLPOLRi 20×/0.40 for iScope
• Product type: Objective / lens
• Model series: iScope
• Manufacturer: Euromex

Facts

• Magnification: 20×
• Numerical aperture: 0.40
• Working distance: 5.8 mm

Special features

• Plan, strain-free optical correction
• Polarisation compatible with reflected and transmitted light
• No cover glass correction
• Compatible with iScope series

FAQ

What applications suit this objective best?
The IS.7920-R objective is intended for polarisation work in material inspection and quality control, supporting both reflected and transmitted illumination for metallography, polymer analysis and other anisotropic-sample examinations.

Can the objective be used with a cover slip?
The objective is supplied without cover glass correction; using a standard cover slip may shift focus and reduce correction accuracy. For applications requiring cover-slip compensation, consider objectives specifically corrected for cover glass.

What does a 0.40 numerical aperture mean in practice?
A 0.40 NA indicates a balance between resolution and depth of field: the IS.7920-R collects sufficient light for high-contrast polarisation imaging while retaining enough focus tolerance for routine inspection tasks.

Is this objective compatible with transmitted and reflected illumination?
Yes. The design supports polarisation in both reflected (episcopic) and transmitted (diascopic) light, enabling flexible contrast techniques on the same specimen.

How should the objective be cleaned and maintained?
Use lens-safe cleaning fluid and lint-free wipes, avoid harsh solvents, and store the objective capped when not in use; routine care preserves the plan optics and polarising elements for long-term reliability.

Manufacturer / Responsible: Euromex Microscopen bv, Typograaf 8, 6921 VB Duiven, Nederland, info@euromex.com