Euromex Objective DX.7740, 40x/0.65 PLPHi, plan, phase, infinity, S (Delphi-X) (53775)

The Euromex Objective DX.7740 is a 40x plan achromatic phase contrast objective designed for advanced laboratory and research microscopy, particularly with the Delphi-X Observer series. This objective is engineered to deliver high-contrast, flat-field images for transparent or low-contrast specimens, making it ideal for life science applications that require detailed cellular observation. Its infinity correction ensures compatibility with modern modular optical systems, and the spring-loaded (suspension) mechanism protects both the lens and samples during focusing. The objective is optimized for use with standard 0.17 mm cover glasses and provides a working distance of 0.7 mm, balancing high magnification with practical sample access.

Optical Details

• Magnification: 40x

• Field curvature: Plan (provides a flat image across the entire field of view)

• Colour correction: Achromatic (minimizes chromatic aberration)

• Phase contrast: Yes (suitable for phase contrast microscopy)

• Infinity corrected: Yes (compatible with infinity optical systems)

• Optical system: Infinity

• Cover glass correction: Yes (optimized for 0.17 mm cover glass thickness)

Performance

• Image scale: 40x

• Numerical aperture: 0.65 (offers high resolution and brightness)

• Designed for cover glass thickness: 0.17 mm

Mechanical Features

• Working distance: 0.7 mm (distance from the front lens to the specimen)

• Suspension: Yes (spring-loaded for added safety)

• Immersion lens: No (intended for dry use)

• Compatible with Delphi-X Observer series: Yes

Additional Information

• Supplier product number: DX.7740

This objective is an excellent choice for users who need reliable 40x magnification with phase contrast capability, flat-field imaging, and the flexibility of an infinity-corrected optical system, especially in demanding laboratory and research environments.