100x Oil Immersion Microscope Objective 1.25 NA, WD 0.2 mm - Euromex

The combination of 100x magnification, numerical aperture 1.25 and an oil-immersion design delivers markedly higher resolving power for demanding microscopy tasks; the close 0.2 mm working distance supports fine focusing on thin samples. Order the lens via Metav Werkzeuge or contact the consultants for matching objectives and accessories.

AE.5601 microscope objective — Euromex 100x oil-immersion, NA 1.25

The AE.5601 microscope objective is an oil-immersion lens intended for high-resolution imaging in laboratory and educational microscopy, optimised for applications that require fine structural detail.

• 100x magnification for fine detail
• Numerical aperture 1.25 for high resolution
• Oil-immersion design for increased contrast
• 0.2 mm working distance for close focusing

Achieve greater resolving power for detailed analysis

With a 100x magnification coupled to a numerical aperture 1.25, this objective significantly increases the ability to distinguish closely spaced structures. The numerical aperture expresses the lens's light-gathering and resolving capability; a higher value permits finer spatial resolution and improved image sharpness. For microscopy tasks where resolving cellular or sub-cellular detail is crucial, the enhanced optical throughput reduces the need for repeated captures and supports reliable, reproducible observations. The design is aligned with laboratory workflows that prioritise precision and traceable results.

Improved contrast and clarity through oil immersion

The oil-immersion configuration lowers refraction between the cover slip and the lens, which increases the effective aperture and yields superior contrast at high magnification. This benefit is especially apparent on specimens with low intrinsic contrast or when visualising fine surface features. The trade-off is the requirement for correct immersion oil and careful cleaning routines after use; appropriate handling preserves optical performance and extends service life. For technicians and educators, the combination of high NA and oil coupling translates into clearer images with less post-processing, supporting faster decision-making in inspection, teaching and research contexts.

Precision focusing for thin specimens and routine use

A 0.2 mm working distance indicates the lens is engineered for close proximity to the specimen, offering precise focal control on thin preparations such as blood smears, bacterial films or thin tissue sections. The short working distance enhances stability when using high magnification but requires attention to sample preparation and cover-slip thickness to avoid contact. Mechanically, the objective is suitable for standard microscope turret systems that accept oil-immersion elements; verify compatibility with tube length and mounting standards as part of system integration. Robust optical construction supports frequent use in teaching labs and routine inspection benches where repeatable performance is essential.

For laboratories seeking dependable high-resolution oil-immersion optics, request further technical matching and procurement through Metav Werkzeuge — expert advice and accessory recommendations are available to ensure optimal installation and use.

Technical data

• Article number: AE.5601
• SKU: AE.5601
• Type: Microscope objective
• Brand: Euromex

Facts

• Magnification: 100x
• Numerical aperture: 1.25
• Working distance: 0.2 mm
• Immersion: Oil

Special features

• S100x/1.25 oil immersion SMP objective
• Suitable for high-resolution laboratory and educational microscopy

FAQ

What optical performance can be expected from this objective?
The AE.5601 microscope objective by Euromex offers 100x magnification and a numerical aperture of 1.25, delivering high resolving power and improved contrast when used with immersion oil.

Is this lens suitable for biological thin-section work?
Yes, the oil-immersion design and the 0.2 mm working distance make the objective appropriate for thin biological specimens, provided correct cover-slip thickness and immersion oil are used.

How should the oil be handled and cleaned after use?
After using the AE.5601 oil-immersion objective, remove oil with lens-grade cleaning solution and lint-free tissue to maintain optical performance and prevent residue build-up.

Can this objective be used on any standard research microscope?
The AE.5601 is designed as a standard oil-immersion objective; compatibility depends on the microscope’s turret and tube-length specifications, so checking mechanical fit is recommended.

What practical benefits does the high numerical aperture provide?
A numerical aperture of 1.25 increases light collection and resolution, resulting in clearer, more detailed images and reducing the need for extensive image processing.

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