60mm Infinite EIS Semi‑Apo Plan Objective PL‑SAPOLRi 20/0.45 3.1mm Working Distance M25 Thread - Euromex

Take advantage of the combination of infinity-corrected optics and a short 3.1 mm working distance for precise, repeatable imaging. Order the DX.7920-R directly via Metav Werkzeuge or consult our specialists for integration advice.

DX.7920-R Infinity-corrected plan semi-apochromat objective, 20x/0.45 (Euromex)

DX.7920-R is an infinity-corrected plan semi-apochromat objective designed for high-contrast, flat-field imaging in laboratory and industrial microscopy

• Infinity-corrected optical design
• 20x magnification, NA 0.45
• Stress-free mounting for stable imaging
• M25 thread, 3.1 mm working distance

Achieve consistent, flat-field images with high contrast

The infinity-corrected design and plan semi-apochromat correction ensure a flat field across the image plane, reducing field curvature and chromatic aberration for clearer results in routine inspection and documentation. With a 20x magnification and NA 0.45, this objective balances resolution and depth of field for most medium-magnification applications. The optical choices translate directly into higher throughput: fewer retakes, faster measurements and reliable image quality for analytical tasks.

Mechanical stability and short working distance for fine samples

A stress-free mounting reduces mechanical distortion and stabilises the optical assembly during handling and temperature changes, which is particularly important for repeat measurements. The objective features an M25 thread for straightforward attachment to compatible microscope nosepieces and adaptors. The 3.1 mm working distance is optimised for close-focus tasks and thin specimens, offering a compact working envelope while maintaining safe clearance for fine sample manipulation.

Clear specification for specific laboratory workflows

Designed without cover glass correction, the objective is optimised for preparations that do not require a cover slip or where imaging is performed directly on surfaces. This explicit design choice avoids confusion during configuration and supports consistent calibration in systems where cover glass correction is not used. Optical labelling such as PL‑SAPOLRi indicates the manufacturer's designation and helps to match the objective to corresponding tubes and condenser setups in industrial microscopes.

Reliable choice for repeated, traceable results

When traceability and consistency matter, choosing an objective with defined optical and mechanical parameters reduces uncertainty. The combination of a robust plan semi-apochromat correction, defined numerical aperture and a compact working distance supports repeatable inspections and documentation routines. As part of a controlled supply chain, integration with a dependable distributor ensures regular availability and swift replacement when systems are scaled or maintained.

Speak to Metav Werkzeuge for tailored advice on integrating the Euromex DX.7920-R into existing microscopes and to arrange reliable delivery from Emmerich.

Technical Data

• Article number: DX.7920-R
• Type: Objective / Lens
• Brand: Euromex

Facts

• Magnification: 20x
• Numerical aperture: 0.45
• Working distance: 3.1 mm
• Thread: M25

Special features

• Infinity-corrected design
• Plan semi-apochromat correction
• Stress-free mounting
• No cover glass correction
• PL‑SAPOLRi designation

FAQ

What magnification and numerical aperture does this objective provide?
The DX.7920-R objective delivers 20x magnification with a 0.45 numerical aperture, suitable for medium-magnification applications where a balance of resolution and depth of field is required.

Is the objective compatible with standard infinity-corrected microscope systems?
Yes, the optical design is infinity-corrected, making the objective compatible with microscopes designed for infinity optics when mounted with the appropriate M25 adaptor.

Can this objective be used with cover glass specimens?
This objective is supplied without cover glass correction, so it is optimised for specimens imaged without a cover slip or where no correction is required.

How close can the objective focus to the sample surface?
The defined working distance is 3.1 mm, which allows close focusing for thin samples and surface inspections while maintaining a safe clearance for probes and manipulators.

What mounting interface does the objective use?
The objective uses an M25 thread, enabling direct attachment to compatible nosepieces or via standard adaptors for many industrial microscope setups.

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