4.3mm Plan PLMi 20x/0.40 IOS Objective Infinity Corrected No Cover Glass Correction - Euromex

Benefit from a combination of precise optics and a compact working distance to maintain sharp images in confined setups. The Plan PLMi 20x/0,40 IOS delivers consistent intermediate magnification and optical flatness; order the objective directly via Metav Werkzeuge or ask our consultants for compatibility advice.

Plan PLMi 20x/0,40 IOS IS.8120 — Euromex microscope objective, 20x, 0.40 NA, 4.3 mm working distance

A Plan PLMi 20x/0,40 IOS microscope objective designed for infinity‑corrected optical systems, offering stable intermediate magnification and a short working distance for compact inspection setups

• 20x magnification for clear intermediate detail
• Numerical aperture 0.40 for improved resolution
• 4.3 mm working distance for compact setups
• Infinity-corrected design, no cover glass correction

Optimised intermediate magnification for detailed imaging

The optical unit provides 20x magnification combined with a 0.40 numerical aperture, delivering a balance between field of view and resolving power. The increased numerical aperture improves light gathering and detail resolution, which is particularly beneficial when inspecting medium‑sized structures. The Plan correction ensures a flat field across the image, reducing peripheral aberrations and making measurements and documentation more reliable. This level of optical control supports repeatable results in routine laboratory and shop‑floor inspections.

Short working distance for space‑constrained applications

With a 4.3 mm working distance, this objective suits setups where stage clearance is limited or where compact condensers are used. The no cover glass correction specification indicates that the lens is optimised for direct specimen observation without a coverslip; this reduces focal shift and maintains image fidelity when examining thicker or uncovered samples. Attention to the working distance helps prevent collisions and supports safe integration into enclosed inspection rigs or compact microscope stands.

Designed for modular, infinite‑corrected systems

The objective is infinity‑corrected, meaning the optical projection beyond the objective is collimated and requires a compatible tube lens to form the final image. This architecture enables flexibility: objectives can be combined with different tube lenses for system‑level optimisation without changing the primary lens performance. The Plan PLMi design and IOS designation indicate high planarity and system compatibility, allowing straightforward exchange within any microscope stand built for infinite optics. For reliable supply and industry‑grade distribution, Metav provides technical guidance and consistent stock handling from its Emmerich facility.

For guidance on system compatibility and to discuss exact optical requirements, contact Metav Werkzeuge for an expert recommendation on the Euromex Plan PLMi 20x/0,40 IOS objective — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: IS.8120
• SKU: IS.8120
• Manufacturer: Euromex
• Product type: microscope objective

Data

• Magnification: 20x
• Numerical aperture: 0.40
• Working distance: 4.3 mm

Special features

• Plan PLMi optical correction
• Infinity‑corrected design (IOS)
• No cover glass correction

FAQ

What optical systems is this objective compatible with? The Plan PLMi 20x/0,40 IOS objective is intended for infinity‑corrected microscope systems and must be used with an appropriate tube lens to form the image.

Can this objective be used with cover slips? This objective has no cover glass correction, so optimal performance is achieved on specimens without a coverslip; using a cover slip may introduce spherical aberration not compensated by the lens design.

How does the 0.40 numerical aperture affect image quality? A 0.40 NA provides enhanced resolution and light collection compared with lower NA lenses, improving detail visibility at 20x magnification while maintaining a practical depth of field.

Is the working distance sufficient for sample holders and accessories? The 4.3 mm working distance is relatively short and suits compact setups; care should be taken with tall sample holders or accessories to avoid contact with the front lens.

What is the article number for ordering and reference? The objective is listed as IS.8120, which should be used as the reference when enquiring about the Euromex Plan PLMi 20x/0,40 IOS microscope objective.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com