20x Plan Semiapochromatic Objective 0.40 NA 3.1mm Working Distance 45mm Parfocal M26 Mount - Euromex

Take advantage of the combination of precision optics, compact integration and reliable parfocal mounting for consistent imaging across objectives; the 20× magnification with 0.40 numerical aperture delivers sharp detail, while the 3.1 mm working distance and M26 mounting simplify installation. Order the PL‑SAMi objective directly via Metav Werkzeuge or ask the consultants if needed.

Plan semi‑apochromatic PL‑SAMi 20×/0.40 IOS BD objective — Euromex precision lens, M26, 3.1 mm WD

A Plan semi‑apochromatic PL‑SAMi 20×/0.40 IOS BD objective engineered for high‑resolution microscopy where plan correction, stable parfocal height and compact mounting are required.

• Plan semi‑apochromatic optical correction
• 20× magnification, 0.40 numerical aperture
• 3.1 mm working distance, M26 mounting thread
• 45 mm parfocal distance

Consistent high‑resolution images for demanding inspection tasks

The plan semi‑apochromatic design ensures a flat field across the image, reducing edge distortion and improving measurement reliability. With 20× magnification paired with a 0.40 numerical aperture, this objective enhances contrast and resolution for fine structural inspection. For practical use, plan correction translates into less refocusing when scanning across a specimen, which shortens inspection cycles and improves throughput in routine laboratory and quality‑control workflows. The optical geometry supports detailed observation without introducing unnecessary complexity for standard brightfield setups.

Compact mounting and parfocal stability that save setup time

Integration is straightforward thanks to the M26 mounting thread and the standard 45 mm parfocal distance, enabling quick swaps between objectives while keeping the focus plane constant. The short 3.1 mm working distance is suitable for many common cover‑slip‑free applications and compact sample holders; working distance here describes the space between lens front and specimen, relevant for fixtures and illumination geometry. The parfocal feature reduces downtime during multi‑magnification inspections, supporting efficient processes in teaching labs, routine analysis and production inspection.

Practical considerations for compatibility and longevity

The objective is supplied without cover‑glass correction, which makes it ideal for applications where samples are presented without a standard coverslip or where correction is handled elsewhere in the optical train. The IOS BD designation and plan semi‑apochromatic correction indicate a focus on balanced colour rendition and reduced chromatic aberration across common wavelengths. For those requiring additional specification checks or compatibility confirmation with an existing turret or trinocular head, technical enquiries can be answered promptly to ensure correct selection and installation.

Discuss application requirements with Metav Werkzeuge — expert advice and ordering assistance are available by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930, enabling a confident choice for laboratory and inspection setups

Technical Data

• Article number: DI.8120
• Label: Plansemiapochromatisch PL‑SAMi 20x/0.40 IOS BD objective, working distance 3.1 mm, no cover‑glass correction, 45 mm parfocal, M26 mounting thread
• Manufacturer: Euromex
• Product type: Objective / lens

Core specifications

• Magnification: 20×
• Numerical aperture: 0.40
• Working distance: 3.1 mm
• Parfocal distance: 45 mm
• Mounting thread: M26

Special features

• Plan semi‑apochromatic optical correction
• IOS BD designation
• No cover‑glass correction
• Compact design suitable for standard brightfield inspection

FAQ

What magnification and resolving power does this objective offer?
The PL‑SAMi 20×/0.40 objective by Euromex provides 20× magnification with a 0.40 numerical aperture, offering improved detail resolution and contrast for routine microscopy and inspection tasks.

Is this objective suitable for use without a cover glass?
Yes, the objective is specified without cover‑glass correction, making it suitable where samples are viewed without a standard coverslip or when correction is applied elsewhere in the optical system.

Will the objective maintain focus when switching magnifications?
The objective is parfocal at 45 mm, so systems configured to this standard will retain focus when objectives with the same parfocal distance are exchanged.

What mounting interface is required for installation?
The lens uses an M26 mounting thread, enabling direct fitting to compatible nosepieces or adapters designed for M26 objectives.

Can this objective be used for quantitative image capture and measurements?
The plan semi‑apochromatic design and the specified numerical aperture support reliable imaging for many measurement tasks; calibration with the imaging system is recommended to ensure traceable results.

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