60mm Infinity EIS Plan Objective 4x 0.10 NA M25 Thread 30mm Working Distance Glass-Cover Correction - Euromex

Take advantage of a compact infinite-corrected Plan objective that combines reliable low-distortion imaging with a generous 30 mm working distance and standard M25 threading for straightforward integration into inspection rigs. Order directly via Metav Werkzeuge or request advice from our consultants to confirm compatibility and delivery.

Infinite-corrected EIS 60 mm Plan SAPOLRi 4×/0.10 Objective (M25, 30 mm WD) — Euromex

The infinite-corrected EIS 60 mm Plan SAPOLRi 4×/0.10 objective is a low-magnification lens optimised for wide-field inspection and documentation in laboratory and industrial microscopy applications

Infinite-corrected Plan optics for flat fields
4× magnification with numerical aperture 0.10
30 mm working distance for fixtures and samples
M25 thread and cover-glass correction

Improved image uniformity for reliable inspection

The lens uses infinite-corrected Plan optics, which maintain a flat field across the image circle and reduce peripheral aberrations; this yields consistent results during measurement, imaging and visual inspection. The 4× magnification together with the NA 0.10 provides a balance between field of view and resolution, making the objective suitable for overview imaging where geometric fidelity matters. Engineers benefit from predictable optical behaviour when documenting components or performing coarse dimensional checks.

Seamless integration into microscope systems and fixtures

With an M25 thread and a 30 mm working distance, the objective is designed for quick mounting and practical clearance above samples and fixturing. The M25 interface follows common low-power objective standards, enabling compatibility with many focusing noses and auxiliary adapters without complex modification. The generous working distance reduces the risk of collision with probes or tools, which helps to protect both the specimen and the lens during routine inspection workflows.

Tailored for inspection, documentation and quality control

The SAPOLRi designation indicates a correction scheme optimised for planar imaging, which helps digital cameras and eyepiece assemblies deliver uniform results across the frame. As a low-power objective lens, it is particularly useful for overview scans, assembly verification and printed circuit board inspection where a broad field and even illumination are priorities. The cover-glass correction helps to maintain focus and resolution when imaging through standard slides or thin protective layers.

Practical optical considerations and handling advice

The numerical aperture and magnification determine depth of field and light capture: a 0.10 NA yields an extended depth of field and forgiving focus, which simplifies alignment for coarse inspection tasks. The cover-glass correction compensates for a standard glass thickness, improving edge sharpness when a slide or protective glass is present. Regular dust protection and routine cleaning with appropriate optical cloths preserve performance; the mechanical M25 thread ensures secure mounting and repeatable positioning during instrument changeover.

Discuss system compatibility and order through Metav Werkzeuge — contact info@metav-werkzeuge.com or call +49 2822 7131930 for personalised advice and reliable supply from Emmerich.

Technical data

• Article number: DX.7904-T
• UID: DX.7904-T
• Product type: Objective / lens
• Manufacturer label: Unendlich EIS 60 mm Plan SAPOLRi 4x/0.10 Objective, M25 thread, 30 mm working distance, cover-glass correction

Core specifications

• Magnification: 4×
• Numerical aperture: 0.10
• Working distance: 30 mm
• Thread: M25

Special features

• Infinite-corrected Plan optics
• SAPOLRi correction
• Cover-glass correction
• Low-magnification objective for inspection and documentation

FAQ

What is the recommended use for this objective?
The Euromex infinite-corrected EIS 60 mm Plan SAPOLRi 4×/0.10 objective is intended for wide-field inspection, documentation and quality-control tasks where a flat field and reliable overview imaging are required.

Will the M25 thread fit my existing microscope nosepiece?
Compatibility depends on the microscope nosepiece; the objective uses an M25 thread which matches many low-power objective adapters and focusing modules commonly used in industrial microscopes.

How does the numerical aperture affect imaging with this lens?
A numerical aperture of 0.10 provides a larger depth of field and reduced sensitivity to focus error, which is advantageous for coarse inspection and documentation where sample height variance is expected.

Can this objective be used with a camera for documentation?
Yes, the Plan correction and infinite objective design make the lens well suited for camera-based imaging, delivering even illumination and reduced edge distortion for digital capture systems.

What does cover-glass correction mean and when is it needed?
Cover-glass correction compensates optically for a thin glass layer between the specimen and the lens; this objective’s correction improves image sharpness when imaging through standard protective glass or slides.

Manufacturer: Euromex Microscopen bv; Typograaf 8; 6921 VB Duiven; Netherlands; info@euromex.com