100x Oil Immersion Objective 1.25 NA, 0.18 mm Working Distance - Euromex

High-resolution imaging for demanding laboratory applications is achieved through the combination of 100x magnification, a numerical aperture of 1.25 and an oil-immersion optical path; the short working distance of 0.18 mm supports fine-detail observation under immersion conditions. Order the Euromex BioBlue.Lab BB.8800 directly via Metav Werkzeuge or consult Metav's specialists for application advice.

Euromex BioBlue.Lab BB.8800 — 100x oil-immersion microscope objective, NA 1.25

A BioBlue.Lab BB.8800 microscope objective designed for high-resolution oil-immersion imaging in life science and advanced laboratory setups.

• 100x oil-immersion magnification
• High numerical aperture 1.25
• Working distance 0.18 mm
• Plan S design for flat-field imaging

Exceptional resolving power for critical samples

The combination of 100x magnification and a numerical aperture of 1.25 delivers significantly enhanced resolution and light-gathering capability compared with lower-NA objectives. High numerical aperture directly improves the ability to distinguish fine structural detail; in practical terms, this means sharper contrast and finer separations of subcellular features when imaging stained tissue, bacteria or microstructures. The oil-immersion optical path raises the effective numerical aperture, reducing refractive losses at the coverglass interface and enabling imaging that approaches the theoretical diffraction limit. Such optical performance is particularly valuable where accurate visualisation and reliable documentation are required.

Flat-field correction for uniform images across the field

The Plan S design provides field flattening and ensures that focus and sharpness are consistent from the centre to the edge of the viewing field. For photomicrography and image analysis, this uniformity reduces aberrations that otherwise complicate stitching, measurement or automated evaluation. Flat-field performance therefore contributes to reproducible results in routine documentation and quantitative workflows. Users relying on camera-based capture or on extended field inspection will benefit from the even illumination and reduced peripheral distortion offered by this optical design.

Practical handling and compatibility in the laboratory

The very short working distance of 0.18 mm is typical for high-NA oil-immersion objectives and requires careful sample preparation, including appropriate coverslip thickness and the correct application of immersion oil. This proximity of lens to specimen improves numerical aperture but demands precise focus control and stable stage mechanics. The objective is intended for standard trinocular and research microscopes configured for oil immersion; mounting and alignment follow conventional practices for high-power objectives. Routine cleaning with suitable solvents and careful handling prolong optical life and maintain image quality over repeated use.

Quality optics for demanding microscopy tasks

Manufactured for consistent performance, the objective supports advanced observation in histology, microbiology and materials inspection where high-contrast, high-resolution imaging is essential. The Euromex BB.8800 (SKU BB.8800) objective is presented as a robust choice for laboratories seeking a high-NA oil-immersion solution and benefits from established optical design principles that prioritise resolution and field uniformity. Integration into laboratory workflows is facilitated by the objective's standardised form factor and optical specifications, allowing rapid assessment of suitability for specific imaging tasks.

For applications requiring true high-NA oil-immersion performance, request the Euromex BioBlue.Lab BB.8800 via Metav Werkzeuge; Metav's technical team at info@metav-werkzeuge.com or +49 2822 7131930 can provide application guidance and order support

Technical Data

• Article number: BB.8800
• SKU: BB.8800
• Manufacturer: Euromex
• Model series: BioBlue.Lab
• Product type: Microscope objective

Facts

• Magnification: 100x
• Numerical aperture: 1.25
• Working distance: 0.18 mm

Special features

• Oil immersion objective
• Plan S flat-field correction
• For microscopes (microscopy accessory)

FAQ

Is immersion oil required for optimal performance?
The Euromex BioBlue.Lab BB.8800 is specified as an oil-immersion objective and requires the correct immersion oil to achieve the stated NA 1.25 and optimal resolution.

What does the numerical aperture of 1.25 mean for image quality?
A numerical aperture of 1.25 indicates high light-gathering ability and improved resolving power; the Euromex BB.8800 uses this characteristic to provide finer detail and better contrast at high magnification.

Can the objective be used with any microscope?
The objective is compatible with microscopes designed for oil-immersion objectives and standard mechanical mounts; however, correct coverslip thickness and stable focus control are necessary due to the working distance of 0.18 mm.

How should the objective be maintained after use?
After imaging, immersion oil should be removed carefully with appropriate lens cleaning agents; routine, gentle maintenance preserves optical coatings and flat-field performance over time.

Is this objective suitable for photomicrography and camera capture?
Yes, the Plan S flat-field design supports consistent imaging across the field, which benefits photomicrography and camera-based documentation workflows.

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