100x Oil Objective 1.25 NA, WD 0.19 mm - Euromex

Take advantage of 100× magnification, numerical aperture 1.25 and a very short working distance of 0.19 mm for enhanced high-magnification imaging; order the objective directly via Metav Werkzeuge or ask the consultants for technical clarification.

bScope BS.7100 — 100× Microscope Objective, NA 1.25 (Euromex)

The bScope BS.7100 is a 100× oil-immersion microscope objective intended for high-resolution life-science and educational microscopy where fine structural detail and strong contrast are required

• 100× magnification for high-resolution imaging
• Numerical aperture 1.25 for superior light gathering
• Oil-immersion with 0.19 mm working distance

Exceptional resolution through high numerical aperture

With 100× magnification combined with a numerical aperture of 1.25, this objective is designed to capture very fine specimen detail and to improve image contrast under transmitted light. The numerical aperture describes the lens's ability to gather light and resolve fine structure: a higher value increases resolving power and brightness at the focal plane. For routine histology, bacteriology or detailed surface inspection, the enhanced light gathering provided by the high NA leads to clearer, sharper images and reduces the need for repeated captures, thereby improving throughput and reproducibility in laboratory workflows.

Oil immersion and the practical advantage of a short working distance

As specified for an oil-immersion design, the lens requires immersion medium between the cover slip and the front lens element to reach its specified performance. The oil-immersion characteristic together with the 0.19 mm working distance allows the lens to achieve the required optical coupling for maximum resolution at extreme magnification. Working distance is the physical clearance from the lens front to the specimen; a shorter distance is typical for high-NA objectives and enables higher resolution, while requiring careful stage handling. Proper use of immersion oil yields superior numerical aperture utilisation and improved image stability for demanding imaging tasks.

Integration into laboratory routines and measurable benefits

Belonging to the bScope series and identified as SKU BS.7100, this Euromex objective is specified for microscopes where high detail and consistent optical quality are critical. The combination of a high numerical aperture and oil coupling produces measurable improvements: higher spatial resolution and greater brightness at high magnifications, which reduces image noise and shortens exposure times in digital capture systems. For laboratories seeking repeatable results, these optical characteristics translate into fewer retakes, better documentation of fine structures and a more efficient imaging workflow. If further technical clarification is required, specifications and source notes as listed in the original product documentation can be consulted.

Contact Metav Werkzeuge GmbH for supply and technical guidance on the Euromex bScope BS.7100 oil objective to secure optimised high-resolution imaging for laboratory and educational use

Technical Data

• Article number: BS.7100
• SKU: BS.7100
• Manufacturer: Euromex
• Model series: bScope
• Product type: Microscope objective

Key specifications

• Magnification: 100×
• Numerical aperture: 1.25
• Working distance: 0.19 mm

Materials & features

• Oil-immersion objective
• Category: For microscopes (microscopy accessories, objectives)
• Source references: Education PDF S.21; Life Science PDF S.9

FAQ

What immersion medium does this objective require?
The Euromex bScope BS.7100 is specified as an oil-immersion microscope objective and should be used with appropriate immersion oil to achieve the stated performance.

What is the working distance and why is it relevant?
The working distance of 0.19 mm for the BS.7100 indicates the small clearance between the lens and the specimen; this short distance is necessary to realise the objective’s high numerical aperture and maximum resolution.

How does a numerical aperture of 1.25 affect imaging?
A numerical aperture of 1.25 increases the light-gathering capacity and resolving power of the BS.7100, yielding finer detail and improved image contrast at high magnification.

Is this objective suitable for routine laboratory teaching and research?
The BS.7100 is designed for high-magnification life-science and educational microscopy applications where detailed structural resolution is required.

Are there specific handling considerations for this objective?
Due to the oil-immersion design and short working distance, careful stage control and correct application of immersion oil are important to maintain optical performance and prolong service life of the objective.

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