100x Oil Immersion Objective 1.25 NA 0.22 mm Working Distance - Euromex

Take advantage of the combination of high numerical aperture and a short working distance for uncompromised high‑resolution imaging; the oil‑immersion design ensures fine detail at 100x magnification. Order the objective directly via Metav Werkzeuge or consult the Metav team for specification matching and procurement.

Microscope objective Achios-X Observer AX.7700 — 100x, 1.25 NA oil‑immersion objective (Euromex)

The Microscope objective Achios‑X Observer AX.7700 is an oil‑immersion objective intended for high‑resolution life‑science imaging, offering a 1.25 numerical aperture and a 0.22 mm working distance for close‑focus applications

• 100x oil‑immersion magnification
• Numerical aperture 1.25 for strong resolution
• 0.22 mm working distance for close focus
• Designed for life science microscopy

Exceptional optical resolving power for demanding samples

The AX.7700 delivers high‑resolution performance through its 1.25 numerical aperture, which directly improves light‑gathering ability and lateral resolution. In practical terms, a larger numerical aperture narrows the diffraction limit and yields crisper contrast on subcellular features, making the objective suitable where detail matters most. Engineers and laboratory teams will value the combination of magnification and aperture because it reduces the need for excessive digital processing, thereby preserving native image quality for analysis, documentation and publication.

Designed for oil‑immersion workflows and tight working spaces

An oil‑immersion design with a 0.22 mm working distance enables the focal plane to be brought very close to the specimen, which increases numerical aperture effectiveness and enhances contrast in thin or optically dense preparations. For users unfamiliar with the term: immersion oil fills the gap between the coverslip and the objective front lens to avoid refraction losses; correct use produces a measurable improvement in resolution. The short working distance requires appropriate stage and condenser adjustment but rewards with visibly finer detail when imaging fixed and stained biological samples.

Smooth integration into routine microscopy setups

This objective has been specified for life‑science microscopes and is compatible with standard 100x oil‑immersion optical trains. Its mechanical and optical characteristics are optimised to work with common condenser types and modern camera sensors, allowing reliable transfer of image information to acquisition systems. Handling and basic maintenance follow established laboratory practice: clean immersion surfaces with appropriate lens tissue and solvent, avoid abrasive materials, and mount with correct immersion medium to sustain optical performance and lifetime.

Procurement confidence and support from Metav

Metav stands for the democratisation of precision: decades of sector expertise, a broad product range and a transparent supply chain make procurement straightforward. With more than 48,000 satisfied customers and an inventory that spans precision metrology to complete workshop equipment, Metav provides a dependable route to acquiring specialist optics. If specification matching or clarification is required for microscope compatibility, the Metav team will assist with technical guidance and supply logistics to ensure the chosen objective supports the intended laboratory workflows.

Contact Metav Werkzeuge for expert advice on the Euromex Achios‑X Observer AX.7700 and to confirm compatibility with existing microscope configurations; Metav Werkzeuge will assist with specification matching and procurement

Technical Data

• Article number: AX.7700
• SKU: AX.7700
• Manufacturer: Euromex
• Product: Microscope objective
• Model series: Achios‑X Observer

Facts

• Magnification: 100x
• Numerical aperture: 1.25
• Working distance: 0.22 mm

Special features

• Oil‑immersion design
• PLPHi specification (per manufacturer PDF)
• Application: For microscopes — life science imaging
• Source: Life Science PDF, p. 21

FAQ

What kind of immersion medium is required for best results?
The AX.7700 is an oil‑immersion objective; using a high‑quality immersion oil matched to the microscope optics will deliver optimal 1.25 numerical aperture performance and the highest image resolution.

Is this objective suitable for routine biological brightfield and fluorescence imaging?
Yes, the objective is specified for life‑science microscopy and provides the resolving power needed for detailed brightfield work; fluorescence use depends on the wider optical path and filters but benefits from the objective’s high numerical aperture.

How close can the objective focus to the specimen?
The working distance is 0.22 mm, enabling close focus for thin preparations; this short distance improves effective numerical aperture but requires careful stage and condenser setup.

Does the AX.7700 require special cleaning or maintenance?
Standard microscope care applies: clean the immersion front lens with appropriate lens tissue and solvent, avoid abrasive cleaning agents and ensure immersion oil is removed after use to protect optical coatings.

Can the Achios‑X Observer AX.7700 be used on most research microscopes?
The objective is designed for standard 100x oil‑immersion configurations and will fit microscopes that accept compatible objective mounts; verify mechanical mounting and optical tube length where exact fit is required.

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