40mm Objective 40x 0.65 NA 0.65 mm Working Distance - Euromex

Taking advantage of 40x magnification combined with a 0.65 numerical aperture delivers a compact objective that balances resolution and light-gathering for demanding routine work; pair this optical performance with supply from Metav Werkzeuge for dependable delivery and product support.

BioBlue.Lab BB.8840 — Microscope objective, 40x, 0.65 NA (Euromex)

The BioBlue.Lab BB.8840 is a 40x microscope objective designed for education and life-science applications, offering a short working distance and a high numerical aperture for detailed imaging.

• 40x magnification for detailed imaging
• Numerical aperture 0.65 for improved resolution
• 0.65 mm working distance for close-focus samples
• PL designation for flat-field correction

Precision optics that improve image detail and contrast

The objective delivers a combination of 40x magnification and numerical aperture 0.65 that improves resolution and contrast for fine structural detail. A higher numerical aperture increases light collection, which helps to resolve closely spaced features and reduces exposure times under transmitted illumination. This means clearer images when examining stained slides or small biological specimens, with the optical parameters tailored to yield consistent performance in routine lab workflows.

Designed for close-focus tasks in teaching and life-science labs

A working distance of 0.65 mm places the front lens close to the specimen, which is advantageous for thin preparations and high-detail observation. The short working distance assists when using immersion media or when precise condenser alignment is required. For training environments and general laboratory use, the combination of magnification and aperture makes the objective suitable for common techniques without requiring specialist accessories, while still delivering the clarity expected in life-science education.

Optical correction and handling considerations for reliable results

Marked with the PL designation, the objective is intended to provide a corrected, flat field across the image plane, reducing curvature and improving edge-to-edge sharpness. This supports image analysis and documentation where uniform focus across the field is important. Although compact in form, the optical design emphasises consistent imaging performance; sensible handling and correct optical alignment will ensure stable, reproducible results in both analogue observation and digital imaging setups.

Practical compatibility and workflow benefits

The construction and specification make this objective an efficient choice for standard upright microscopes used in teaching and routine laboratory work. Its optical parameters favour samples that benefit from increased light gathering and high spatial resolution. When integrated into established microscopy systems, the objective contributes to a streamlined workflow by reducing the need for repeated focusing and allowing faster, more confident inspection of specimens during teaching sessions or basic life-science investigations.

Contact Metav Werkzeuge for tailored advice on supply and compatibility of the Euromex BioBlue.Lab BB.8840 — email info@metav-werkzeuge.com or call +49 2822 7131930 to secure reliable delivery from Emmerich.

Technical data

• Article number: BB.8840
• SKU: BB.8840
• Manufacturer: Euromex
• Series: BioBlue.Lab
• Product type: Microscope objective

Specifications

• Magnification: 40x
• Working distance: 0.65 mm
• Numerical aperture: 0.65

Special features

• S40x/0.65 PL objective
• Intended for education and life science
• Marking: PL designation for flat-field correction

FAQ

What level of detail can be expected with this objective?
The BioBlue.Lab BB.8840 achieves high detail at 40x magnification aided by a 0.65 numerical aperture, enabling clear resolution of fine structures in standard stained or unstained preparations.

Is the short working distance a limitation for routine use?
A working distance of 0.65 mm is intentionally short to support close-focus tasks; the Euromex objective performs well with thin samples and properly adjusted condenser settings.

Which applications are most suitable for this objective?
The objective is well suited to education and general life-science microscopy, where a balance of magnification, resolution and a flat field is required for teaching, inspection and documentation.

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