12mm 20x Microscope Objective 0.40 NA, 12 mm Working Distance - Euromex

Take advantage of a mid-range 20× optical solution with a 0.40 numerical aperture and a practical 12 mm working distance for reliable sample handling and clear image contrast; order the Delphi‑X Observer DX.7720 microscope objective directly via Metav Werkzeuge or consult the team for further technical details.

Delphi‑X Observer DX.7720 microscope objective — 20×, NA 0.40 (Euromex)

The Delphi‑X Observer DX.7720 is a laboratory-grade 20× microscope objective designed for precise mid-range imaging with a comfortable working clearance for routine life‑science and inspection tasks.

• 20× magnification for mid-range detail
• 12 mm working distance for safe sample access
• 0.40 numerical aperture for good resolution
• Designed for life‑science and routine inspection

Consistent mid-range magnification for reliable imaging

The 20× configuration delivers a balance between field of view and detail, making this objective suitable for tasks that demand both overview and resolution. The 0.40 numerical aperture increases light-gathering capacity compared with lower-NA optics, improving contrast and enabling crisper imaging of cellular structures and fine surface detail. In practical terms, the combination of 20× and 0.40 NA supports efficient image acquisition on standard microscopes, helping to reduce time spent adjusting illumination or re-focusing while maintaining interpretable results for documentation and analysis.

Practical working distance to protect samples and instruments

A 12 mm working distance provides meaningful clearance between the front lens and the specimen, which reduces the risk of accidental contact during manipulation, mounting or multi-modal workflows. This extra space is particularly beneficial when using thicker slides, stages with inserts, or when occasional tool access is needed during preparation. The longer working clearance also simplifies handling in busy lab environments, where speed and care must be balanced without compromising optical performance.

Clear technical definition of optical parameters

The numerical aperture (NA 0.40) specifies the lens’s ability to capture diffracted light; a higher NA increases resolving power and brightness at the image plane. The working distance (12 mm) denotes the distance from the objective’s front element to the specimen at focus, which determines clearance and ease of use. Together with the 20× magnification, these parameters give a precise expectation of the performance envelope for routine microscopy tasks, allowing informed selection for both educational and laboratory settings. The optical specification originates from the product documentation (Life Science PDF, p. 26), ensuring traceability of the stated values.

Designed for dependable integration and everyday use

Produced under the Delphi‑X Observer series, this objective combines straightforward mechanical compatibility with an optical specification tailored to life‑science and inspection applications. The DX.7720 item is a compact optical element that complements existing objective sets and supports consistent image quality across common workflows. For laboratories seeking to standardise instruments, the dependable specification helps reduce variability between sessions and operators, supporting reproducible results in documentation and routine measurement tasks.

For expert procurement or compatibility advice on the Euromex Delphi‑X Observer DX.7720, contact Metav Werkzeuge for tailored guidance and reliable supply from Emmerich.

Technical Data

• Article number: DX.7720
• SKU: DX.7720
• Manufacturer: Euromex
• Product type: Microscope objective
• Model series: Delphi‑X Observer

Facts

• Magnification: 20×
• Working distance: 12 mm
• Numerical aperture: 0.40
• Source: Life Science PDF S. 26

Special features

• 20× / 0.40 PLPHi objective
• WD 12 mm

FAQ

What magnification does the objective provide?
The Delphi‑X Observer DX.7720 delivers 20× magnification, suitable for mid‑range detail and routine microscopy tasks.

What is the working distance and why is it important?
The working distance is 12 mm; this clearance reduces the risk of contact with the specimen and eases handling during preparation and inspection.

What does a numerical aperture of 0.40 indicate?
A numerical aperture of 0.40 denotes the objective’s light‑gathering and resolving ability; higher NA improves resolution and image brightness for fine detail observation.

Which applications suit this objective best?
The specification is aligned with life‑science imaging and routine inspection, offering a practical balance of magnification, resolution and operational clearance.

Who manufactures the objective and what is the article number?
The objective is manufactured by Euromex and listed under article number DX.7720 (SKU DX.7720).

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